nymaim | 5eb0b4b21107152dfbfaed3a9c61233233d3cab8a650cbb88dcfc34cff1f99ec

General

Target

1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
Size

275KB
MD5

1fe8e5f03a721f0a37fbbf0ea5779d6d
SHA1

ef876bed0fa429ee30b5395b69a89ad4d74a3fcc
SHA256

5eb0b4b21107152dfbfaed3a9c61233233d3cab8a650cbb88dcfc34cff1f99ec
SHA512

35331dc01b743553abc6e17c9aced57fa28d5bca9a0292b6ec5fc6f60574b8710605d7a4fa34a7331847dd4c9349ae1017d44aba975358612988a8a2c49cadac
SSDEEP

6144:+FU/LHPiDaqkg7kKCfVWkF6N+k17tzTpq:+FYjiDaTgvsu7hT

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

Processes:

1fe8e5f03a721f0a37fbbf0ea5779d6d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	1fe8e5f03a721f0a37fbbf0ea5779d6d.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 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
1516	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
4680	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
3380	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
4868	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
3284	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
4256	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
1860	2992	WerFault.exe	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1848 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1848 taskkill.exe

pid	process
1848	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1848	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1fe8e5f03a721f0a37fbbf0ea5779d6d.execmd.exe

description	pid	process	target process
PID 2992 wrote to memory of 4084	2992	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe	cmd.exe
PID 2992 wrote to memory of 4084	2992	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe	cmd.exe
PID 2992 wrote to memory of 4084	2992	1fe8e5f03a721f0a37fbbf0ea5779d6d.exe	cmd.exe
PID 4084 wrote to memory of 1848	4084	cmd.exe	taskkill.exe
PID 4084 wrote to memory of 1848	4084	cmd.exe	taskkill.exe
PID 4084 wrote to memory of 1848	4084	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\1fe8e5f03a721f0a37fbbf0ea5779d6d.exe
"C:\Users\Admin\AppData\Local\Temp\1fe8e5f03a721f0a37fbbf0ea5779d6d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 732
2⤵
- Program crash
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 752
2⤵
- Program crash
PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 924
2⤵
- Program crash
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 912
2⤵
- Program crash
PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 912
2⤵
- Program crash
PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 944
2⤵
- Program crash
PID:4256

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "1fe8e5f03a721f0a37fbbf0ea5779d6d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1fe8e5f03a721f0a37fbbf0ea5779d6d.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4084

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "1fe8e5f03a721f0a37fbbf0ea5779d6d.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 1060
2⤵
- Program crash
PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2992 -ip 2992
1⤵
PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2992 -ip 2992
1⤵
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2992 -ip 2992
1⤵
PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2992 -ip 2992
1⤵
PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2992 -ip 2992
1⤵
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2992 -ip 2992
1⤵
PID:568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2992 -ip 2992
1⤵
PID:1452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1848-136-0x0000000000000000-mapping.dmp

Download
memory/2992-132-0x000000000097E000-0x00000000009A5000-memory.dmp

Filesize
156KB

Download
memory/2992-133-0x0000000000900000-0x0000000000940000-memory.dmp

Filesize
256KB

Download
memory/2992-134-0x0000000000400000-0x0000000000663000-memory.dmp

Filesize
2.4MB

Download
memory/2992-137-0x000000000097E000-0x00000000009A5000-memory.dmp

Filesize
156KB

Download
memory/2992-138-0x0000000000400000-0x0000000000663000-memory.dmp

Filesize
2.4MB

Download
memory/4084-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads