nymaim | 2da0e38b12f592fd9fbf4a14a8922edc5df7d3b178d519f13295f5bc4826d3f0

Analysis

max time kernel
105s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/09/2022, 15:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
file.exe
Size 241KB
Sample220926-s9ctkabcb5
SHA256 2da0e38b12f592fd9fbf4a14a8922edc5df7d3b178d519f13295f5bc4826d3f0
MD5 553f7155ec1a9cac7a147a4e878b62dc
SHA1 e4605d6344a6967f06921b71501db4bb5765299f
SHA512 1d1ac48b3578f157d5cd1ccd7f6bc600a3e6cadfae45202302589ca7972893178c3914855b43d07114c401bb89e934e8545dce0d78fde6cc7f4a05d706c377f1
SSDEEP 3072:JU36zTc5oHVGtM9S4no/APrOfEMkLouMLmFuZRWSFbDDKMg69OdRNSXTsaIqS3c+:9w46yr+EBouM8uZRJ1bgUOZC9q3c
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
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
3588	Cleaner.exe

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 12 IoCs

pid	pid_target	Process	procid_target
4892	1088	WerFault.exe	78
1968	1088	WerFault.exe	78
3748	1088	WerFault.exe	78
2440	1088	WerFault.exe	78
1800	1088	WerFault.exe	78
4552	1088	WerFault.exe	78
488	1088	WerFault.exe	78
100	1088	WerFault.exe	78
752	1088	WerFault.exe	78
4648	1088	WerFault.exe	78
4924	1088	WerFault.exe	78
1964	1088	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
2012	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1088	file.exe
1088	file.exe
1088	file.exe
1088	file.exe
1088	file.exe
1088	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1088	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3588	Cleaner.exe
Token: SeDebugPrivilege	2012	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 5052	1088	file.exe	102
PID 1088 wrote to memory of 5052	1088	file.exe	102
PID 1088 wrote to memory of 5052	1088	file.exe	102
PID 5052 wrote to memory of 3588	5052	cmd.exe	104
PID 5052 wrote to memory of 3588	5052	cmd.exe	104
PID 1088 wrote to memory of 1576	1088	file.exe	115
PID 1088 wrote to memory of 1576	1088	file.exe	115
PID 1088 wrote to memory of 1576	1088	file.exe	115
PID 1576 wrote to memory of 2012	1576	cmd.exe	119
PID 1576 wrote to memory of 2012	1576	cmd.exe	119
PID 1576 wrote to memory of 2012	1576	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 460
  2⤵
  - Program crash
  PID:4892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 756
  2⤵
  - Program crash
  PID:1968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 772
  2⤵
  - Program crash
  PID:3748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 772
  2⤵
  - Program crash
  PID:2440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 796
  2⤵
  - Program crash
  PID:1800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 928
  2⤵
  - Program crash
  PID:4552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 932
  2⤵
  - Program crash
  PID:488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1152
  2⤵
  - Program crash
  PID:100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1372
  2⤵
  - Program crash
  PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1396
  2⤵
  - Program crash
  PID:4648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1672
  2⤵
  - Program crash
  PID:4924
- 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:1576
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 492
  2⤵
  - Program crash
  PID:1964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1088 -ip 1088
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1088 -ip 1088
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1088 -ip 1088
1⤵
PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1088 -ip 1088
1⤵
PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1088 -ip 1088
1⤵
PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1088 -ip 1088
1⤵
PID:4264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1088 -ip 1088
1⤵
PID:2636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1088 -ip 1088
1⤵
PID:2844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1088 -ip 1088
1⤵
PID:3832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1088 -ip 1088
1⤵
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1088 -ip 1088
1⤵
PID:4952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1088 -ip 1088
1⤵
PID:2032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

Bunifu_UI_v1.5.3.dll

Path C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Bunifu_UI_v1.5.3.dll
Size 236KB
SHA256 f1b3e0f2750a9103e46a6a4a34f1cf9d17779725f98042cc2475ec66484801cf
MD5 2ecb51ab00c5f340380ecf849291dbcf
SHA1 1a4dffbce2a4ce65495ed79eab42a4da3b660931
SHA512 e241a48eafcaf99187035f0870d24d74ae97fe84aaadd2591cceea9f64b8223d77cfb17a038a58eadd3b822c5201a6f7494f26eea6f77d95f77f6c668d088e6b
SSDEEP 6144:SIQpxILDXGGMO7Ice9C5kQw2hWHcHTykhb:SIQpxILDXGGlET9n/cHG
MD5 SHA1 SHA512 SSDEEP

Submit Download

Cleaner.exe

Path C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Cleaner.exe
Size 4.2MB
SHA256 663a353b45ed8f3acd4abc429f519635c1cf1294e3b9af98ffe6b1d4937c0e8f
MD5 e89589df13ac2783f322449f63547468
SHA1 bd938f596e09e2ed04c3bc0f0ac68de71e04bcf6
SHA512 9e0126975b32d022b6fe89d4681981e57ef1a3c6375ee2df131ce3527a3ad91c795d75302b78c8fc59651e9e20cebfd177b3278a87f45f8174f9e4ec09fc9cc6
SSDEEP 98304:B3D///UUrPV0vER7ehER7ehER7ehER7ehER7ehER7ehER7ehER7eG:Zacfffffffb
MD5 SHA1 SHA512 SSDEEP

Submit Download

Cleaner.exe

Path C:\Users\Admin\AppData\Local\Temp\hAM2mpeiZJzm1\Cleaner.exe
Size 4.2MB
SHA256 663a353b45ed8f3acd4abc429f519635c1cf1294e3b9af98ffe6b1d4937c0e8f
MD5 e89589df13ac2783f322449f63547468
SHA1 bd938f596e09e2ed04c3bc0f0ac68de71e04bcf6
SHA512 9e0126975b32d022b6fe89d4681981e57ef1a3c6375ee2df131ce3527a3ad91c795d75302b78c8fc59651e9e20cebfd177b3278a87f45f8174f9e4ec09fc9cc6
SSDEEP 98304:B3D///UUrPV0vER7ehER7ehER7ehER7ehER7ehER7ehER7ehER7eG:Zacfffffffb
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1088-144-0x0000000000400000-0x0000000000599000-memory.dmp

Download

memory/1088-146-0x0000000010000000-0x000000001001B000-memory.dmp

Download

memory/1088-153-0x0000000000400000-0x0000000000599000-memory.dmp

Download

memory/1088-134-0x0000000000400000-0x0000000000599000-memory.dmp

Download

memory/1088-152-0x000000000073A000-0x0000000000761000-memory.dmp

Download

memory/1088-133-0x0000000000660000-0x000000000069F000-memory.dmp

Download

memory/1088-143-0x000000000073A000-0x0000000000761000-memory.dmp

Download

memory/1088-132-0x000000000073A000-0x0000000000761000-memory.dmp

Download

memory/3588-142-0x00007FF8F2B60000-0x00007FF8F3621000-memory.dmp

Download

memory/3588-145-0x00007FF8F2B60000-0x00007FF8F3621000-memory.dmp

Download

memory/3588-141-0x0000022E9D990000-0x0000022E9D9D2000-memory.dmp

Download

memory/3588-139-0x0000022E9BAD0000-0x0000022E9BC52000-memory.dmp

Download