nymaim | 8e9cc7dfb5ebc2fa8b4f6e738076bb6cb9830b118c1da38fa42b031c331c2e6b

Analysis

max time kernel
77s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2022, 15:33

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General

Target
file.exe
Size 382KB
Sample220918-sy682abdf5
SHA256 8e9cc7dfb5ebc2fa8b4f6e738076bb6cb9830b118c1da38fa42b031c331c2e6b
MD5 cccd96c8b0745588ccf7298e4b82117d
SHA1 f08ca3deadb1f0fecffe8ae7632428678c209225
SHA512 2b6feee3ae500bccd080f5d08940fae642f23e69e46ff61c865adb90d99e45801737977e42370cb14ea6a12d106328668cc6f370112d768f42a28d76dc8a158d
SSDEEP 6144:qutR4LaroQwCBBlWqeJ4vrdI+nynFzrqVy0jvnigabwVf:qxaoQwCB9esr9yn9q9ji
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-1-5-21-929662420-1054238289-2961194603-1000\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
3996	3536	WerFault.exe	79
3112	3536	WerFault.exe	79
4380	3536	WerFault.exe	79
1712	3536	WerFault.exe	79
4764	3536	WerFault.exe	79
1100	3536	WerFault.exe	79
1748	3536	WerFault.exe	79
3132	3536	WerFault.exe	79
2328	3536	WerFault.exe	79
4984	3536	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
3036	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3536 wrote to memory of 376	3536	file.exe	110
PID 3536 wrote to memory of 376	3536	file.exe	110
PID 3536 wrote to memory of 376	3536	file.exe	110
PID 376 wrote to memory of 3036	376	cmd.exe	114
PID 376 wrote to memory of 3036	376	cmd.exe	114
PID 376 wrote to memory of 3036	376	cmd.exe	114

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:3536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 460
  2⤵
  - Program crash
  PID:3996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 764
  2⤵
  - Program crash
  PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 764
  2⤵
  - Program crash
  PID:4380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 844
  2⤵
  - Program crash
  PID:1712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 852
  2⤵
  - Program crash
  PID:4764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 928
  2⤵
  - Program crash
  PID:1100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 928
  2⤵
  - Program crash
  PID:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1072
  2⤵
  - Program crash
  PID:3132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1368
  2⤵
  - Program crash
  PID:2328
- 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:376
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 476
  2⤵
  - Program crash
  PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 3536 -ip 3536
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3536 -ip 3536
1⤵
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3536 -ip 3536
1⤵
PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3536 -ip 3536
1⤵
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3536 -ip 3536
1⤵
PID:4192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3536 -ip 3536
1⤵
PID:2432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3536 -ip 3536
1⤵
PID:3148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3536 -ip 3536
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3536 -ip 3536
1⤵
PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3536 -ip 3536
1⤵
PID:4364

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/3536-132-0x00000000005A9000-0x00000000005D0000-memory.dmp

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memory/3536-133-0x00000000004E0000-0x0000000000522000-memory.dmp

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memory/3536-134-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/3536-137-0x00000000005A9000-0x00000000005D0000-memory.dmp

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memory/3536-138-0x0000000000400000-0x0000000000465000-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