nymaim | 575f2b0942436ae0781a9c1600d75a296984d0a9ff5e637cb3f894dcaab5902c

Analysis

max time kernel
108s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2022, 09:52

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General

Target

file.exe
Size

289KB
MD5

bd8bbea97077312320256656ecac315e
SHA1

8ea37c1b12ad9bdd4bce4d20f32dda395c20187c
SHA256

575f2b0942436ae0781a9c1600d75a296984d0a9ff5e637cb3f894dcaab5902c
SHA512

28f648965592ac66e4d5b2f6537247cf628b1a89cf4af184fa2f81adbb3d7c073924002791e42e8e9346e13dadf7466b9cbc95598adaf1848a4d895b485f072c
SSDEEP

3072:fDu9k12Hsm5YB6f8fVP7vFKi3jNUOHGHHjSBN9Y5f7ehJYoCrdz7j/XRuhEyzKuw:mLw/VPpKm60U7jeLLyR7jpuGyeuEn

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
2148	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-1-5-21-2295526160-1155304984-640977766-1000\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
4932	3044	WerFault.exe	80
1520	3044	WerFault.exe	80
2716	3044	WerFault.exe	80
4400	3044	WerFault.exe	80
1028	3044	WerFault.exe	80
2144	3044	WerFault.exe	80
3488	3044	WerFault.exe	80
1384	3044	WerFault.exe	80
2328	3044	WerFault.exe	80
4020	3044	WerFault.exe	80
4912	3044	WerFault.exe	80
384	3044	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
4616	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3044	file.exe
3044	file.exe
3044	file.exe
3044	file.exe
3044	file.exe
3044	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3044	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	Cleaner.exe
Token: SeDebugPrivilege	4616	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 940	3044	file.exe	105
PID 3044 wrote to memory of 940	3044	file.exe	105
PID 3044 wrote to memory of 940	3044	file.exe	105
PID 940 wrote to memory of 2148	940	cmd.exe	107
PID 940 wrote to memory of 2148	940	cmd.exe	107
PID 3044 wrote to memory of 2068	3044	file.exe	116
PID 3044 wrote to memory of 2068	3044	file.exe	116
PID 3044 wrote to memory of 2068	3044	file.exe	116
PID 2068 wrote to memory of 4616	2068	cmd.exe	119
PID 2068 wrote to memory of 4616	2068	cmd.exe	119
PID 2068 wrote to memory of 4616	2068	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:3044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 448
  2⤵
  - Program crash
  PID:4932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 772
  2⤵
  - Program crash
  PID:1520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 812
  2⤵
  - Program crash
  PID:2716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 760
  2⤵
  - Program crash
  PID:4400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 856
  2⤵
  - Program crash
  PID:1028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 928
  2⤵
  - Program crash
  PID:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 928
  2⤵
  - Program crash
  PID:3488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 1148
  2⤵
  - Program crash
  PID:1384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 1392
  2⤵
  - Program crash
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:940
- - C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 1384
  2⤵
  - Program crash
  PID:4020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 1672
  2⤵
  - Program crash
  PID:4912
- 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:2068
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 492
  2⤵
  - Program crash
  PID:384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3044 -ip 3044
1⤵
PID:1260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3044 -ip 3044
1⤵
PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3044 -ip 3044
1⤵
PID:4488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3044 -ip 3044
1⤵
PID:2244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3044 -ip 3044
1⤵
PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3044 -ip 3044
1⤵
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3044 -ip 3044
1⤵
PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3044 -ip 3044
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3044 -ip 3044
1⤵
PID:3192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3044 -ip 3044
1⤵
PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3044 -ip 3044
1⤵
PID:3364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 632 -p 3044 -ip 3044
1⤵
PID:2344

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Bunifu_UI_v1.5.3.dll

Filesize
236KB

MD5
2ecb51ab00c5f340380ecf849291dbcf

SHA1
1a4dffbce2a4ce65495ed79eab42a4da3b660931

SHA256
f1b3e0f2750a9103e46a6a4a34f1cf9d17779725f98042cc2475ec66484801cf

SHA512
e241a48eafcaf99187035f0870d24d74ae97fe84aaadd2591cceea9f64b8223d77cfb17a038a58eadd3b822c5201a6f7494f26eea6f77d95f77f6c668d088e6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Cleaner.exe

Filesize
3.8MB

MD5
23c1e8f48ec06960bbd9969c1f404192

SHA1
b9384151eb3f2dbd095fa273c248722e1cc74ea3

SHA256
301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c

SHA512
f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\2vCe60XfEA\Cleaner.exe

Filesize
3.8MB

MD5
23c1e8f48ec06960bbd9969c1f404192

SHA1
b9384151eb3f2dbd095fa273c248722e1cc74ea3

SHA256
301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c

SHA512
f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b

Download Submit
memory/2148-145-0x000001B1AD270000-0x000001B1AD2B2000-memory.dmp

Filesize
264KB

Download
memory/2148-142-0x000001B1ACC90000-0x000001B1ACE10000-memory.dmp

Filesize
1.5MB

Download
memory/2148-143-0x00007FFCC37E0000-0x00007FFCC42A1000-memory.dmp

Filesize
10.8MB

Download
memory/2148-146-0x00007FFCC37E0000-0x00007FFCC42A1000-memory.dmp

Filesize
10.8MB

Download
memory/3044-137-0x0000000000400000-0x00000000005A2000-memory.dmp

Filesize
1.6MB

Download
memory/3044-136-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/3044-135-0x0000000000400000-0x00000000005A2000-memory.dmp

Filesize
1.6MB

Download
memory/3044-133-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/3044-147-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/3044-134-0x00000000022E0000-0x000000000231F000-memory.dmp

Filesize
252KB

Download
memory/3044-153-0x0000000000400000-0x00000000005A2000-memory.dmp

Filesize
1.6MB

Download