nymaim | 606325e9d37cb293eec47b365f7780ca76df929898d4960e5a3886dac277feb2

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2022, 14:18

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
d98be94092b60c3b379198dfa02326df.exe
Size 496KB
Sample220911-rmaj9afeck
SHA256 606325e9d37cb293eec47b365f7780ca76df929898d4960e5a3886dac277feb2
MD5 d98be94092b60c3b379198dfa02326df
SHA1 e510afb325d9783f0b0e391b560d4447381d94da
SHA512 9208d480db748604e451cf8ee6f57621640669aa17ef56418ba460165622c898ca90297fdd0f2b5f77b97372ce6cc7eb9ba57e1718455c89ec956b3cfe90b0e0
SSDEEP 6144:8JK1Cor6HvnQb0KlHOLXZc14gXLOCFxOjSMHaXXkF9cWbaVs9SU2BZZ:8JCCjHvGFQbeZOCPOjTHAkFiWbapUMH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

208.67.104.97
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	d98be94092b60c3b379198dfa02326df.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3548 set thread context of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
4944	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83
PID 3548 wrote to memory of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83
PID 3548 wrote to memory of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83
PID 3548 wrote to memory of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83
PID 3548 wrote to memory of 920	3548	d98be94092b60c3b379198dfa02326df.exe	83
PID 920 wrote to memory of 5064	920	d98be94092b60c3b379198dfa02326df.exe	87
PID 920 wrote to memory of 5064	920	d98be94092b60c3b379198dfa02326df.exe	87
PID 920 wrote to memory of 5064	920	d98be94092b60c3b379198dfa02326df.exe	87
PID 5064 wrote to memory of 4944	5064	cmd.exe	89
PID 5064 wrote to memory of 4944	5064	cmd.exe	89
PID 5064 wrote to memory of 4944	5064	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe
"C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe
  "C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im "d98be94092b60c3b379198dfa02326df.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5064
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im "d98be94092b60c3b379198dfa02326df.exe" /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:4944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/920-133-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/920-134-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/920-136-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/920-137-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/920-139-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/3548-135-0x0000000000400000-0x000000000044F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads