Managed XDR

vtdl_pzwy8myt (Mydoom) — malware analysis report

File info

Filename
vtdl_pzwy8myt
File type
Non-ISO extended-ASCII text, with LF, NEL line terminators
File size
86.7 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
8baac4444776b59252a35ff6a47aada2f7fa8798
SHA256
d8c239394a3da72aeb8d4d97ecd6e02b9a5c3b886efbbc10c1b9c32a748fc68a
MD5
3c8d520e5ab75d82ea80d71d01373ac6

Malwares

  • Mydoom

Signatures

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027.002 packer_polymorphic: Creates a modified copy of itself
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1027.002 packer_vb: The executable file is packed using VB
T1480 system_default_lang_id_present: Checks the system language
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1518 locates_browser: Attempts to identify where browsers are installed

Command and Control

T1071.003 network_smtp: Sends emails, possibly SPAM

Impact

T1565 modifies_hostfile: Writes data to system hosts file

Other

yara_rules: Static rules
executes_dropped_exe: Executes dropped exe files
creates_exe: Creates executable files in the file system
static_pe_anomaly: The PE file structure contains anomalies
creates_in_windows: Creates files in the Windows directory
copies_self: Creates a copy of itself
network_bind: Starts servers listening at 0.0.0.0:10087
dead_host: Connects to IP addresses that do not respond to requests
unexpected_exception: Unexpected exception
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
access_recyclebin: Manipulation with recyclebin detected
get_policy_info: Retrieves information about a Policy object
pe_overlay: PE file contains overlay

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