nymaim | 7cd74db163f108d1969f2bae3a5cbabace6f61a8414b5957343868118aa8cbbd

Analysis

max time kernel
91s
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
18/09/2022, 14:57

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General

Target
file.exe
Size 382KB
Sample220918-sbk3aafcfk
SHA256 7cd74db163f108d1969f2bae3a5cbabace6f61a8414b5957343868118aa8cbbd
MD5 7c12bdc810e6c0079b67f64c285cdf55
SHA1 c612b61b8198712be35f7b503d8116ddaf280359
SHA512 ac8160fb312d00e024b611cc8371e4ad72f20b6b09147d31d0089ac48e3ed3edf8a7fbba8f49d7294389e919e756a620198c567143f27e15fd5b77716886084f
SSDEEP 6144:uPiMuSLDrFF5Dr7QuwEsdyJg6F07lkc07qZnigabwVf:uSSrFF5LQfEs16X7ui
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	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
3536	3604	WerFault.exe	78
2296	3604	WerFault.exe	78
4528	3604	WerFault.exe	78
2148	3604	WerFault.exe	78
2264	3604	WerFault.exe	78
212	3604	WerFault.exe	78
4276	3604	WerFault.exe	78
3488	3604	WerFault.exe	78
3860	3604	WerFault.exe	78
4588	3604	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
452	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	452	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 1212	3604	file.exe	104
PID 3604 wrote to memory of 1212	3604	file.exe	104
PID 3604 wrote to memory of 1212	3604	file.exe	104
PID 1212 wrote to memory of 452	1212	cmd.exe	108
PID 1212 wrote to memory of 452	1212	cmd.exe	108
PID 1212 wrote to memory of 452	1212	cmd.exe	108

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:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 460
  2⤵
  - Program crash
  PID:3536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 764
  2⤵
  - Program crash
  PID:2296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 764
  2⤵
  - Program crash
  PID:4528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 784
  2⤵
  - Program crash
  PID:2148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 856
  2⤵
  - Program crash
  PID:2264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 928
  2⤵
  - Program crash
  PID:212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1000
  2⤵
  - Program crash
  PID:4276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1048
  2⤵
  - Program crash
  PID:3488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1356
  2⤵
  - Program crash
  PID:3860
- 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:1212
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 500
  2⤵
  - Program crash
  PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3604 -ip 3604
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3604 -ip 3604
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3604 -ip 3604
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3604 -ip 3604
1⤵
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3604 -ip 3604
1⤵
PID:4180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3604 -ip 3604
1⤵
PID:1672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3604 -ip 3604
1⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3604 -ip 3604
1⤵
PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3604 -ip 3604
1⤵
PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3604 -ip 3604
1⤵
PID:3800

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

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Downloads

memory/3604-132-0x0000000000749000-0x0000000000770000-memory.dmp

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memory/3604-133-0x00000000021D0000-0x0000000002212000-memory.dmp

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memory/3604-134-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/3604-137-0x0000000000749000-0x0000000000770000-memory.dmp

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memory/3604-138-0x0000000000400000-0x0000000000465000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads