nymaim | 308b9d686f10b6164f3334c657fdefb82cd9209845e50b78679452db9cd08368

Resubmissions

21/02/2023, 12:14

230221-penqsseg4610

30/08/2022, 16:19

220830-tsg8dsdag510

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2022, 16:19

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General

Target
file.exe
Size 380KB
Sample220830-tsg8dsdag5
SHA256 308b9d686f10b6164f3334c657fdefb82cd9209845e50b78679452db9cd08368
MD5 44ef10541424c5aff878c9c2e11e9149
SHA1 2df830a4c357f7617fbdaf3f6a4b911a386f9719
SHA512 e39ee6dc1beae44b9c5d21f3e75a1be067bd22cae4d6f06e8cdeecddf4764ac3c283ef16b431b6b13728b91eb0581190436136ff81b6be1ea9012e8141b70bdf
SSDEEP 6144:r+GYSc5lXyx6Z2sATrvM/aThwWtf3dlcSLgjvwUUQlxF/9t1rSFtGc1FFPdTbnj0:qGY8TSGfNqSLmvwUNF/3NCBFPdTP20zs
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim trojan

Malware Config

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
4752	796	WerFault.exe	81
1936	796	WerFault.exe	81
4976	796	WerFault.exe	81
2348	796	WerFault.exe	81
4408	796	WerFault.exe	81
4740	796	WerFault.exe	81
32	796	WerFault.exe	81
2788	796	WerFault.exe	81
2296	796	WerFault.exe	81
4056	796	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
3784	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3784	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 4108	796	file.exe	102
PID 796 wrote to memory of 4108	796	file.exe	102
PID 796 wrote to memory of 4108	796	file.exe	102
PID 4108 wrote to memory of 3784	4108	cmd.exe	106
PID 4108 wrote to memory of 3784	4108	cmd.exe	106
PID 4108 wrote to memory of 3784	4108	cmd.exe	106

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:796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 448
  2⤵
  - Program crash
  PID:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 764
  2⤵
  - Program crash
  PID:1936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 764
  2⤵
  - Program crash
  PID:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 764
  2⤵
  - Program crash
  PID:2348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 836
  2⤵
  - Program crash
  PID:4408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 904
  2⤵
  - Program crash
  PID:4740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1008
  2⤵
  - Program crash
  PID:32
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1032
  2⤵
  - Program crash
  PID:2788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1368
  2⤵
  - Program crash
  PID:2296
- 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:4108
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1456
  2⤵
  - Program crash
  PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 796 -ip 796
1⤵
PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 796 -ip 796
1⤵
PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 796 -ip 796
1⤵
PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 796 -ip 796
1⤵
PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 796 -ip 796
1⤵
PID:4344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 796 -ip 796
1⤵
PID:924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 796 -ip 796
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 796 -ip 796
1⤵
PID:1232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 796 -ip 796
1⤵
PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 796 -ip 796
1⤵
PID:2680

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/796-132-0x000000000091D000-0x0000000000944000-memory.dmp

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memory/796-133-0x00000000025B0000-0x00000000025F2000-memory.dmp

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memory/796-134-0x0000000000400000-0x0000000000862000-memory.dmp

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memory/796-135-0x000000000091D000-0x0000000000944000-memory.dmp

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memory/796-136-0x0000000000400000-0x0000000000862000-memory.dmp

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memory/796-139-0x000000000091D000-0x0000000000944000-memory.dmp

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memory/796-140-0x0000000000400000-0x0000000000862000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads