nymaim | 39e18ae1185a6b9229d15f8670f52e2ed098485e274e93fd9a48d30eab4a9a8d

Analysis

max time kernel
91s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
16/09/2022, 04:35

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General

Target
file.exe
Size 372KB
Sample220916-e7namaaddk
SHA256 39e18ae1185a6b9229d15f8670f52e2ed098485e274e93fd9a48d30eab4a9a8d
MD5 5b9ebbca3ae633c21988c3411048840f
SHA1 75315c8104bef9cd90035edcb19363c3a612bafe
SHA512 83c40cfbf476e9a885d74165ddb2a673b61c958f81923856b6cec29df4b82570f79642bcc2e9837bfe332758ee69d0a79a51917de72b5b0267f26039831d00b7
SSDEEP 6144:YfRmAfSYpclyrdQ3beFvDcC1Q54xHe1JqPrguGcXi3ci0uwgS+PYfrosw96zrNHa:YfLfSYMyRQ3ecC1Q57JA4crAS+PMMr9G
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-1-5-21-2891029575-1462575-1165213807-1000\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
4852	1484	WerFault.exe	80
4140	1484	WerFault.exe	80
1176	1484	WerFault.exe	80
1868	1484	WerFault.exe	80
2884	1484	WerFault.exe	80
4516	1484	WerFault.exe	80
5064	1484	WerFault.exe	80
1120	1484	WerFault.exe	80
3688	1484	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
3264	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3264	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 4144	1484	file.exe	100
PID 1484 wrote to memory of 4144	1484	file.exe	100
PID 1484 wrote to memory of 4144	1484	file.exe	100
PID 4144 wrote to memory of 3264	4144	cmd.exe	104
PID 4144 wrote to memory of 3264	4144	cmd.exe	104
PID 4144 wrote to memory of 3264	4144	cmd.exe	104

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:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 452
  2⤵
  - Program crash
  PID:4852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 772
  2⤵
  - Program crash
  PID:4140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 764
  2⤵
  - Program crash
  PID:1176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 764
  2⤵
  - Program crash
  PID:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 844
  2⤵
  - Program crash
  PID:2884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 928
  2⤵
  - Program crash
  PID:4516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 928
  2⤵
  - Program crash
  PID:5064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 1368
  2⤵
  - Program crash
  PID:1120
- 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:4144
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 1328
  2⤵
  - Program crash
  PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1484 -ip 1484
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1484 -ip 1484
1⤵
PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1484 -ip 1484
1⤵
PID:5028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1484 -ip 1484
1⤵
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1484 -ip 1484
1⤵
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1484 -ip 1484
1⤵
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1484 -ip 1484
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1484 -ip 1484
1⤵
PID:752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1484 -ip 1484
1⤵
PID:5088

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/1484-132-0x0000000000839000-0x0000000000860000-memory.dmp

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memory/1484-133-0x0000000000730000-0x0000000000773000-memory.dmp

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memory/1484-134-0x0000000000400000-0x00000000005B9000-memory.dmp

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memory/1484-137-0x0000000000730000-0x0000000000773000-memory.dmp

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memory/1484-138-0x0000000000400000-0x00000000005B9000-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