nymaim | 9466b999d1e6c276e15b3e5141a196bbce6f702a202c48def794e11105231328

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2022, 10:35

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General

Target

ab1822ef22022d6189e055a9eb012ee6.exe
Size

385KB
MD5

ab1822ef22022d6189e055a9eb012ee6
SHA1

99299165338fb529f7a6180467c0aedbbde410f5
SHA256

9466b999d1e6c276e15b3e5141a196bbce6f702a202c48def794e11105231328
SHA512

458e553dffd16c850c3e045ae03e23c13130b12f696c7bacef4656a06ae632aa39d4f719e700897e754d890833c1d3ab9eadaa83e75010416fec95d49b05a8b8
SSDEEP

6144:JxQLviJfQMxiZC5BL+qV6vuIFflrUmO11HzO3KaKadlzZYw:JqTiJfQMVVFIFfmmOjO

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ab1822ef22022d6189e055a9eb012ee6.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
3360	4932	WerFault.exe	80
2696	4932	WerFault.exe	80
1604	4932	WerFault.exe	80
4856	4932	WerFault.exe	80
4300	4932	WerFault.exe	80
1456	4932	WerFault.exe	80
628	4932	WerFault.exe	80
716	4932	WerFault.exe	80
2700	4932	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
5048	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5048	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4492	4932	ab1822ef22022d6189e055a9eb012ee6.exe	101
PID 4932 wrote to memory of 4492	4932	ab1822ef22022d6189e055a9eb012ee6.exe	101
PID 4932 wrote to memory of 4492	4932	ab1822ef22022d6189e055a9eb012ee6.exe	101
PID 4492 wrote to memory of 5048	4492	cmd.exe	103
PID 4492 wrote to memory of 5048	4492	cmd.exe	103
PID 4492 wrote to memory of 5048	4492	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\ab1822ef22022d6189e055a9eb012ee6.exe
"C:\Users\Admin\AppData\Local\Temp\ab1822ef22022d6189e055a9eb012ee6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 456
  2⤵
  - Program crash
  PID:3360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 772
  2⤵
  - Program crash
  PID:2696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 780
  2⤵
  - Program crash
  PID:1604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 812
  2⤵
  - Program crash
  PID:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 864
  2⤵
  - Program crash
  PID:4300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 928
  2⤵
  - Program crash
  PID:1456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 1004
  2⤵
  - Program crash
  PID:628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 1368
  2⤵
  - Program crash
  PID:716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ab1822ef22022d6189e055a9eb012ee6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ab1822ef22022d6189e055a9eb012ee6.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ab1822ef22022d6189e055a9eb012ee6.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 1488
  2⤵
  - Program crash
  PID:2700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4932 -ip 4932
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4932 -ip 4932
1⤵
PID:3548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4932 -ip 4932
1⤵
PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4932 -ip 4932
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4932 -ip 4932
1⤵
PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4932 -ip 4932
1⤵
PID:1488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4932 -ip 4932
1⤵
PID:1788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 4932 -ip 4932
1⤵
PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4932 -ip 4932
1⤵
PID:2516

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/4932-133-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/4932-134-0x00000000021B0000-0x00000000021F0000-memory.dmp

Filesize
256KB

Download
memory/4932-135-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4932-138-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download