nymaim | fa180d788066c58a8bcb27729bbe5bdcba7887b5eacff50effc3af1206fd4eee

Analysis

max time kernel
101s
max time network
150s
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, 07:58

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General

Target

file.exe
Size

381KB
MD5

84a4e8454dd3e6f9e59955463b91e4f1
SHA1

d5dc4ea8cafb441e68e8c697911d705941475aec
SHA256

fa180d788066c58a8bcb27729bbe5bdcba7887b5eacff50effc3af1206fd4eee
SHA512

8da6f5dcb65ade1ce1aff7e7178bba60369d8332f012a61e164da5caea28aaea1fa5bc29eb02466b265c00f14e7c8a8cf94f4ee026e3ba075c4a35aef57bf996
SSDEEP

6144:0Oy30LzDKSW5Lv1rhRqeXbxbtQKW1GUXWPbFGS0ym/nigabwVf:0T30XDK5L1rhAgxbnZWXi

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
3584	4908	WerFault.exe	82
3236	4908	WerFault.exe	82
1684	4908	WerFault.exe	82
4676	4908	WerFault.exe	82
2924	4908	WerFault.exe	82
4264	4908	WerFault.exe	82
1608	4908	WerFault.exe	82
2004	4908	WerFault.exe	82
2076	4908	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
4972	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 4336	4908	file.exe	105
PID 4908 wrote to memory of 4336	4908	file.exe	105
PID 4908 wrote to memory of 4336	4908	file.exe	105
PID 4336 wrote to memory of 4972	4336	cmd.exe	109
PID 4336 wrote to memory of 4972	4336	cmd.exe	109
PID 4336 wrote to memory of 4972	4336	cmd.exe	109

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:4908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 452
  2⤵
  - Program crash
  PID:3584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 764
  2⤵
  - Program crash
  PID:3236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 804
  2⤵
  - Program crash
  PID:1684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 804
  2⤵
  - Program crash
  PID:4676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 860
  2⤵
  - Program crash
  PID:2924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 888
  2⤵
  - Program crash
  PID:4264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 888
  2⤵
  - Program crash
  PID:1608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 1356
  2⤵
  - Program crash
  PID:2004
- 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:4336
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 476
  2⤵
  - Program crash
  PID:2076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4908 -ip 4908
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4908 -ip 4908
1⤵
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4908 -ip 4908
1⤵
PID:3624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4908 -ip 4908
1⤵
PID:2816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4908 -ip 4908
1⤵
PID:1236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4908 -ip 4908
1⤵
PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4908 -ip 4908
1⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4908 -ip 4908
1⤵
PID:4292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4908 -ip 4908
1⤵
PID:4332

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

Replay Monitor

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Downloads

memory/4908-132-0x000000000057D000-0x00000000005A4000-memory.dmp

Filesize
156KB

Download
memory/4908-133-0x00000000021D0000-0x0000000002212000-memory.dmp

Filesize
264KB

Download
memory/4908-134-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/4908-137-0x000000000057D000-0x00000000005A4000-memory.dmp

Filesize
156KB

Download
memory/4908-138-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download