nymaim | 8300b7608c08c7ebba60503bea52a17f3d8e87b370a2c49bd087a70ef771ec0a

Analysis

max time kernel
91s
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
16/09/2022, 16:01

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
file.exe
Size 392KB
Sample220916-tf7yaagbe7
SHA256 8300b7608c08c7ebba60503bea52a17f3d8e87b370a2c49bd087a70ef771ec0a
MD5 34c6ccb027f9b32f3f5694132d6bb58c
SHA1 e3ef3222e750d05cbc64b57dacf4c22ea3cb2e90
SHA512 36cc441b78895d28092542b441e59e014889b658d3cafa76baa0eab286dea4cbcd252f9be8050c83e782e17a5401d8e0c689d99d56b206bfef424f469d320aca
SSDEEP 6144:c5W/IBghG3eSIMviYlRKdXF6KQ0YTq2vUGF0DJnigabwVf:cc/IEG3eSpv7IX7sUvDJi
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
460	2636	WerFault.exe	79
528	2636	WerFault.exe	79
2020	2636	WerFault.exe	79
2132	2636	WerFault.exe	79
744	2636	WerFault.exe	79
344	2636	WerFault.exe	79
2376	2636	WerFault.exe	79
4196	2636	WerFault.exe	79
956	2636	WerFault.exe	79
4596	2636	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
3288	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 4824	2636	file.exe	103
PID 2636 wrote to memory of 4824	2636	file.exe	103
PID 2636 wrote to memory of 4824	2636	file.exe	103
PID 4824 wrote to memory of 3288	4824	cmd.exe	107
PID 4824 wrote to memory of 3288	4824	cmd.exe	107
PID 4824 wrote to memory of 3288	4824	cmd.exe	107

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:2636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 464
  2⤵
  - Program crash
  PID:460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 764
  2⤵
  - Program crash
  PID:528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 784
  2⤵
  - Program crash
  PID:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 764
  2⤵
  - Program crash
  PID:2132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 836
  2⤵
  - Program crash
  PID:744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 904
  2⤵
  - Program crash
  PID:344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 936
  2⤵
  - Program crash
  PID:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1056
  2⤵
  - Program crash
  PID:4196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1368
  2⤵
  - Program crash
  PID:956
- 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:4824
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 520
  2⤵
  - Program crash
  PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2636 -ip 2636
1⤵
PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2636 -ip 2636
1⤵
PID:4284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2636 -ip 2636
1⤵
PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2636 -ip 2636
1⤵
PID:4308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2636 -ip 2636
1⤵
PID:2120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2636 -ip 2636
1⤵
PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2636 -ip 2636
1⤵
PID:2340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2636 -ip 2636
1⤵
PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2636 -ip 2636
1⤵
PID:752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2636 -ip 2636
1⤵
PID:912

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

Loading Replay Monitor...

Downloads

memory/2636-132-0x0000000000519000-0x0000000000540000-memory.dmp

Download

memory/2636-133-0x00000000021F0000-0x0000000002232000-memory.dmp

Download

memory/2636-134-0x0000000000400000-0x0000000000467000-memory.dmp

Download

memory/2636-137-0x0000000000519000-0x0000000000540000-memory.dmp

Download

memory/2636-138-0x0000000000400000-0x0000000000467000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads