nymaim | f60da95a425e0ef33550da4e87c0fac6e99ca94602ae61ce97a2d84e9f54762e

Analysis

max time kernel
90s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
17/09/2022, 18:34

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General

Target
file.exe
Size 381KB
Sample220917-w7rfqaebaq
SHA256 f60da95a425e0ef33550da4e87c0fac6e99ca94602ae61ce97a2d84e9f54762e
MD5 f41ad528711f2bfaba256bbfc8af4175
SHA1 e600fadb90127e20a36942d181484d7fccf8336b
SHA512 364a94b1a09dc814375fc6567b91225e33acb0925174db10cd3dacdcd02f05ac58b941108e6e61cbfa8fa3d67bc3c0560259f1069e39084e2133a427617bc062
SSDEEP 6144:Sv7LIeju3OtHoI4BT3ofci2rZw1Whi3TP09MnigabwVfe:Sv70eju3OxoI4BTGboZ2Whiw2i
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 9 IoCs

pid	pid_target	Process	procid_target
664	3140	WerFault.exe	78
4704	3140	WerFault.exe	78
4620	3140	WerFault.exe	78
1652	3140	WerFault.exe	78
3444	3140	WerFault.exe	78
4180	3140	WerFault.exe	78
1672	3140	WerFault.exe	78
3004	3140	WerFault.exe	78
3488	3140	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
3876	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3876	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 4392	3140	file.exe	102
PID 3140 wrote to memory of 4392	3140	file.exe	102
PID 3140 wrote to memory of 4392	3140	file.exe	102
PID 4392 wrote to memory of 3876	4392	cmd.exe	106
PID 4392 wrote to memory of 3876	4392	cmd.exe	106
PID 4392 wrote to memory of 3876	4392	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:3140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 452
  2⤵
  - Program crash
  PID:664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 764
  2⤵
  - Program crash
  PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 804
  2⤵
  - Program crash
  PID:4620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 824
  2⤵
  - Program crash
  PID:1652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 780
  2⤵
  - Program crash
  PID:3444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 928
  2⤵
  - Program crash
  PID:4180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 932
  2⤵
  - Program crash
  PID:1672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 1360
  2⤵
  - Program crash
  PID:3004
- 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:4392
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 516
  2⤵
  - Program crash
  PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3140 -ip 3140
1⤵
PID:736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3140 -ip 3140
1⤵
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3140 -ip 3140
1⤵
PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3140 -ip 3140
1⤵
PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3140 -ip 3140
1⤵
PID:4132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3140 -ip 3140
1⤵
PID:740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3140 -ip 3140
1⤵
PID:448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3140 -ip 3140
1⤵
PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3140 -ip 3140
1⤵
PID:936

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/3140-132-0x00000000006CD000-0x00000000006F4000-memory.dmp

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memory/3140-133-0x0000000000630000-0x0000000000672000-memory.dmp

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memory/3140-134-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/3140-137-0x00000000006CD000-0x00000000006F4000-memory.dmp

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memory/3140-138-0x0000000000400000-0x0000000000465000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads