nymaim | 385c9c32cf0f1661f1831b5fabe93f41ac609b31eaea300c327a71de0bfdcbcc

General

Target

1aee5b97c777fd7c7db6ba98974ddc49.exe
Size

340KB
MD5

1aee5b97c777fd7c7db6ba98974ddc49
SHA1

b6e8bb3152c5e541afd1725da98377ae2def1b9b
SHA256

385c9c32cf0f1661f1831b5fabe93f41ac609b31eaea300c327a71de0bfdcbcc
SHA512

87547ecbe9587a10a6a759548ae76913c6756c9f88a34f62487a9584410a29a25e527a184f5fd6d68ec6cc56d22bda621262f820800d45ecf91eec658dd22655
SSDEEP

6144:k/TL+BteH67joN07TEH3qx2xcT4Zx7u3OYm4k6c0t+niga:k76BtboOwH3qx2RCOjkt+i

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

C2

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	1aee5b97c777fd7c7db6ba98974ddc49.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
2160	988	WerFault.exe	78
2680	988	WerFault.exe	78
1872	988	WerFault.exe	78
2496	988	WerFault.exe	78
792	988	WerFault.exe	78
4400	988	WerFault.exe	78
260	988	WerFault.exe	78
4792	988	WerFault.exe	78
3752	988	WerFault.exe	78
4800	988	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
1012	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1012	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 988 wrote to memory of 2212	988	1aee5b97c777fd7c7db6ba98974ddc49.exe	98
PID 988 wrote to memory of 2212	988	1aee5b97c777fd7c7db6ba98974ddc49.exe	98
PID 988 wrote to memory of 2212	988	1aee5b97c777fd7c7db6ba98974ddc49.exe	98
PID 2212 wrote to memory of 1012	2212	cmd.exe	102
PID 2212 wrote to memory of 1012	2212	cmd.exe	102
PID 2212 wrote to memory of 1012	2212	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\1aee5b97c777fd7c7db6ba98974ddc49.exe
"C:\Users\Admin\AppData\Local\Temp\1aee5b97c777fd7c7db6ba98974ddc49.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 452
  2⤵
  - Program crash
  PID:2160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 764
  2⤵
  - Program crash
  PID:2680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 784
  2⤵
  - Program crash
  PID:1872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 784
  2⤵
  - Program crash
  PID:2496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 836
  2⤵
  - Program crash
  PID:792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 852
  2⤵
  - Program crash
  PID:4400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 852
  2⤵
  - Program crash
  PID:260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 1140
  2⤵
  - Program crash
  PID:4792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 1324
  2⤵
  - Program crash
  PID:3752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1aee5b97c777fd7c7db6ba98974ddc49.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1aee5b97c777fd7c7db6ba98974ddc49.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1aee5b97c777fd7c7db6ba98974ddc49.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 1396
  2⤵
  - Program crash
  PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 988 -ip 988
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 988 -ip 988
1⤵
PID:4656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 988 -ip 988
1⤵
PID:4276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 988 -ip 988
1⤵
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 988 -ip 988
1⤵
PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 988 -ip 988
1⤵
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 988 -ip 988
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 988 -ip 988
1⤵
PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 988 -ip 988
1⤵
PID:4804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 988 -ip 988
1⤵
PID:2040

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/988-132-0x00000000004FD000-0x0000000000525000-memory.dmp

Filesize
160KB

Download
memory/988-133-0x00000000021A0000-0x00000000021E3000-memory.dmp

Filesize
268KB

Download
memory/988-134-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/988-137-0x00000000004FD000-0x0000000000525000-memory.dmp

Filesize
160KB

Download
memory/988-138-0x00000000021A0000-0x00000000021E3000-memory.dmp

Filesize
268KB

Download
memory/988-139-0x00000000004FD000-0x0000000000525000-memory.dmp

Filesize
160KB

Download
memory/988-140-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download

Analysis

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