nymaim | 5d680b566b484f1d7ddf787462139c16ccd2ca1aeb3ecc4167a95c2cdd80809c

Analysis

max time kernel
95s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2022, 23:41

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General

Target
file.exe
Size 371KB
Sample220915-3pegrsecg2
SHA256 5d680b566b484f1d7ddf787462139c16ccd2ca1aeb3ecc4167a95c2cdd80809c
MD5 a918ecf88334f765084431fcbebc866c
SHA1 b080412c68ef518a8090570757aff0fc07c63719
SHA512 c69e546e1d26e1d00d9c9d503eccd0a092338f641494e680599a08025ba15276bfa73230a8597a2995f9a810587182106115301eb0d9870d5db9b3a82ddf3825
SSDEEP 6144:SMeinuTYvA6moH8hEuMeNcGy9WrPbaGrWh9Q/y9Mfi4fvTSEhbqbn30uIL:SMXuTGA3c8hTcGy9WrPOGrU9QqYi4fvg
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-1-5-21-2629973501-4017243118-3254762364-1000\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 10 IoCs

pid	pid_target	Process	procid_target
3576	4216	WerFault.exe	79
4880	4216	WerFault.exe	79
4936	4216	WerFault.exe	79
1864	4216	WerFault.exe	79
3196	4216	WerFault.exe	79
1544	4216	WerFault.exe	79
4068	4216	WerFault.exe	79
3548	4216	WerFault.exe	79
5060	4216	WerFault.exe	79
3972	4216	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
4636	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 2492	4216	file.exe	102
PID 4216 wrote to memory of 2492	4216	file.exe	102
PID 4216 wrote to memory of 2492	4216	file.exe	102
PID 2492 wrote to memory of 4636	2492	cmd.exe	106
PID 2492 wrote to memory of 4636	2492	cmd.exe	106
PID 2492 wrote to memory of 4636	2492	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:4216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 452
  2⤵
  - Program crash
  PID:3576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 764
  2⤵
  - Program crash
  PID:4880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 784
  2⤵
  - Program crash
  PID:4936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 784
  2⤵
  - Program crash
  PID:1864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 764
  2⤵
  - Program crash
  PID:3196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 928
  2⤵
  - Program crash
  PID:1544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 928
  2⤵
  - Program crash
  PID:4068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 1044
  2⤵
  - Program crash
  PID:3548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 1368
  2⤵
  - Program crash
  PID:5060
- 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:2492
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 484
  2⤵
  - Program crash
  PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4216 -ip 4216
1⤵
PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4216 -ip 4216
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4216 -ip 4216
1⤵
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4216 -ip 4216
1⤵
PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4216 -ip 4216
1⤵
PID:1772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4216 -ip 4216
1⤵
PID:884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 4216 -ip 4216
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 4216 -ip 4216
1⤵
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 4216 -ip 4216
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 4216 -ip 4216
1⤵
PID:4708

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/4216-132-0x00000000007A9000-0x00000000007D0000-memory.dmp

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memory/4216-133-0x0000000000740000-0x0000000000783000-memory.dmp

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memory/4216-134-0x0000000000400000-0x00000000005B9000-memory.dmp

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memory/4216-137-0x00000000007A9000-0x00000000007D0000-memory.dmp

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memory/4216-138-0x0000000000740000-0x0000000000783000-memory.dmp

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memory/4216-139-0x0000000000400000-0x00000000005B9000-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