nymaim | 29819b55e60be88f80f634504f1981e9a6694aa8c8c9d190f6d7b539a292e7e1

General

Target

file.exe
Size

336KB
MD5

dd0ca0a8da1c8fb72b1ad80dc78c3ed2
SHA1

616f2bc9d06cbd7a1a1a88298c7eb71ec1d67a01
SHA256

29819b55e60be88f80f634504f1981e9a6694aa8c8c9d190f6d7b539a292e7e1
SHA512

96d7707adcbc1364e345e23420435bec9c83f1a50a886b5018e71e2758b305ba15692632747701558a24625719f7e8e1d9ce6ea8d4f469b1ff9a4767a905b012
SSDEEP

6144:gk4KHPL+kIvbbucJ+pjzqyYf58JsUQ5xetReNfCTj:gk4KHPKHvnucJuBo0sv5xetiqTj

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	file.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
2124	3436	WerFault.exe	81
4412	3436	WerFault.exe	81
1772	3436	WerFault.exe	81
5084	3436	WerFault.exe	81
864	3436	WerFault.exe	81
2280	3436	WerFault.exe	81
4632	3436	WerFault.exe	81
3608	3436	WerFault.exe	81
2436	3436	WerFault.exe	81
1864	3436	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
3100	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3100	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3436 wrote to memory of 3092	3436	file.exe	107
PID 3436 wrote to memory of 3092	3436	file.exe	107
PID 3436 wrote to memory of 3092	3436	file.exe	107
PID 3092 wrote to memory of 3100	3092	cmd.exe	111
PID 3092 wrote to memory of 3100	3092	cmd.exe	111
PID 3092 wrote to memory of 3100	3092	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 452
  2⤵
  - Program crash
  PID:2124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 764
  2⤵
  - Program crash
  PID:4412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 772
  2⤵
  - Program crash
  PID:1772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 816
  2⤵
  - Program crash
  PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 824
  2⤵
  - Program crash
  PID:864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 928
  2⤵
  - Program crash
  PID:2280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 1012
  2⤵
  - Program crash
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 1088
  2⤵
  - Program crash
  PID:3608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 1360
  2⤵
  - Program crash
  PID:2436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "file.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 1368
  2⤵
  - Program crash
  PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 3436 -ip 3436
1⤵
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 3436 -ip 3436
1⤵
PID:1164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3436 -ip 3436
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3436 -ip 3436
1⤵
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3436 -ip 3436
1⤵
PID:2788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3436 -ip 3436
1⤵
PID:1640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3436 -ip 3436
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3436 -ip 3436
1⤵
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3436 -ip 3436
1⤵
PID:1008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3436 -ip 3436
1⤵
PID:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3092-135-0x0000000000000000-mapping.dmp

Download
memory/3100-136-0x0000000000000000-mapping.dmp

Download
memory/3436-132-0x0000000002C87000-0x0000000002CAD000-memory.dmp

Filesize
152KB

Download
memory/3436-133-0x00000000030F0000-0x0000000003130000-memory.dmp

Filesize
256KB

Download
memory/3436-134-0x0000000000400000-0x0000000002C41000-memory.dmp

Filesize
40.3MB

Download
memory/3436-137-0x0000000002C87000-0x0000000002CAD000-memory.dmp

Filesize
152KB

Download
memory/3436-138-0x0000000000400000-0x0000000002C41000-memory.dmp

Filesize
40.3MB

Download

Analysis

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