nymaim | 4d9fbef8dbf505ce116fc43c6e2b16076324c9c8523de9f0439991bfcc09b687

Analysis

max time kernel
72s
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
07/10/2022, 08:11

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General

Target
file.exe
Size 396KB
Sample221007-j29znacbdl
SHA256 4d9fbef8dbf505ce116fc43c6e2b16076324c9c8523de9f0439991bfcc09b687
MD5 8fb921d71eef0d106f4ca92b665bd6dc
SHA1 3403a3dd3f88f7b4c6ecb21b2a19e1a951d789b8
SHA512 84c50731fbd916c6b66065e164c8faec36c11b5883fce492fdd98d56906b6a5712c8fddf9b56a6cea1fd8a440d605a24ddb8dc97b0ed95a048e36bb6260cf28b
SSDEEP 6144:FsiqJuVU68vY2ZgJQVxSF0AyUIoQ1Cwwf0CRwrzpm/FqcLuzbgwukQwVfU:F1I6v8AMOF0NoQ1vwf0CGmunnD4
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

Executes dropped EXE 1 IoCs

pid	Process
2560	QnMbgq.exe

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
5076	4936	WerFault.exe	81
732	4936	WerFault.exe	81
4536	4936	WerFault.exe	81
408	4936	WerFault.exe	81
5080	4936	WerFault.exe	81
2088	4936	WerFault.exe	81
212	4936	WerFault.exe	81
2732	4936	WerFault.exe	81
3676	4936	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
1528	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4936	file.exe
4936	file.exe
4936	file.exe
4936	file.exe
4936	file.exe
4936	file.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2560	4936	file.exe	102
PID 4936 wrote to memory of 2560	4936	file.exe	102
PID 4936 wrote to memory of 2560	4936	file.exe	102
PID 4936 wrote to memory of 1000	4936	file.exe	109
PID 4936 wrote to memory of 1000	4936	file.exe	109
PID 4936 wrote to memory of 1000	4936	file.exe	109
PID 1000 wrote to memory of 1528	1000	cmd.exe	111
PID 1000 wrote to memory of 1528	1000	cmd.exe	111
PID 1000 wrote to memory of 1528	1000	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 456
  2⤵
  - Program crash
  PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 772
  2⤵
  - Program crash
  PID:732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 804
  2⤵
  - Program crash
  PID:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 824
  2⤵
  - Program crash
  PID:408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 772
  2⤵
  - Program crash
  PID:5080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 932
  2⤵
  - Program crash
  PID:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 936
  2⤵
  - Program crash
  PID:212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1044
  2⤵
  - Program crash
  PID:2732
- C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\QnMbgq.exe
  2⤵
  - Executes dropped EXE
  PID:2560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1452
  2⤵
  - Program crash
  PID:3676
- 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:1000
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4936 -ip 4936
1⤵
PID:3984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4936 -ip 4936
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4936 -ip 4936
1⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4936 -ip 4936
1⤵
PID:1072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4936 -ip 4936
1⤵
PID:2076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4936 -ip 4936
1⤵
PID:2688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4936 -ip 4936
1⤵
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4936 -ip 4936
1⤵
PID:1796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4936 -ip 4936
1⤵
PID:1860

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

QnMbgq.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\QnMbgq.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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QnMbgq.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\QnMbgq.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/4936-135-0x000000000071D000-0x000000000074E000-memory.dmp

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memory/4936-141-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/4936-145-0x000000000071D000-0x000000000074E000-memory.dmp

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memory/4936-146-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4936-137-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4936-148-0x000000000071D000-0x000000000074E000-memory.dmp

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memory/4936-149-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4936-136-0x0000000000670000-0x00000000006C3000-memory.dmp

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