nymaim | 3d30171e97dd5dd913a05f8af355c7fe1eb4ecee60ddb5a31f29ae472e23bac2

Analysis

max time kernel
75s
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
16/09/2022, 02:53

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General

Target
file.exe
Size 371KB
Sample220916-ddal1aeeb7
SHA256 3d30171e97dd5dd913a05f8af355c7fe1eb4ecee60ddb5a31f29ae472e23bac2
MD5 b04c219dad53c09735b086f704b9dc8c
SHA1 3f58ea2ece69d77e34ae2d114e1f966ad49f5137
SHA512 c1247a448038d63a4817f43db362512092de45041c6211ccbf4f8a7bfe70c791e9fc79e61d49d0cb11fa2a78c706e4a5a7b3d4d6544887404628a83526f02aa7
SSDEEP 6144:znclAmiGYnXrYk3+b616miR1+IqccxnOc19iwhZx/YMOJJ6L5I:zkAmiGaXrYk3D6miRHqcchOc1USZxQM4
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
1356	1648	WerFault.exe	81
3644	1648	WerFault.exe	81
1760	1648	WerFault.exe	81
1672	1648	WerFault.exe	81
5032	1648	WerFault.exe	81
1908	1648	WerFault.exe	81
4876	1648	WerFault.exe	81
1556	1648	WerFault.exe	81
1996	1648	WerFault.exe	81
3644	1648	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
2644	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2920	1648	file.exe	111
PID 1648 wrote to memory of 2920	1648	file.exe	111
PID 1648 wrote to memory of 2920	1648	file.exe	111
PID 2920 wrote to memory of 2644	2920	cmd.exe	115
PID 2920 wrote to memory of 2644	2920	cmd.exe	115
PID 2920 wrote to memory of 2644	2920	cmd.exe	115

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:1648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 456
  2⤵
  - Program crash
  PID:1356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 772
  2⤵
  - Program crash
  PID:3644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 756
  2⤵
  - Program crash
  PID:1760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 824
  2⤵
  - Program crash
  PID:1672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 832
  2⤵
  - Program crash
  PID:5032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 928
  2⤵
  - Program crash
  PID:1908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 924
  2⤵
  - Program crash
  PID:4876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1040
  2⤵
  - Program crash
  PID:1556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1052
  2⤵
  - Program crash
  PID:1996
- 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:2920
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 468
  2⤵
  - Program crash
  PID:3644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1648 -ip 1648
1⤵
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1648 -ip 1648
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1648 -ip 1648
1⤵
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1648 -ip 1648
1⤵
PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1648 -ip 1648
1⤵
PID:2136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1648 -ip 1648
1⤵
PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1648 -ip 1648
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1648 -ip 1648
1⤵
PID:2408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1648 -ip 1648
1⤵
PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1648 -ip 1648
1⤵
PID:5076

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/1648-132-0x00000000007C9000-0x00000000007F0000-memory.dmp

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memory/1648-133-0x0000000002350000-0x0000000002393000-memory.dmp

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memory/1648-134-0x0000000000400000-0x00000000005B9000-memory.dmp

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memory/1648-137-0x0000000000400000-0x00000000005B9000-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