nymaim | 084ae7065e16af47442376b693822c3e158f451c4e8ff6717a32b4769c67b0f8

Analysis

max time kernel
99s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2022, 06:09

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General

Target

file.exe
Size

233KB
MD5

dd237b2a867f583cfb1d28680de4b270
SHA1

92857237c3b520ad24940784c54830c79e891e88
SHA256

084ae7065e16af47442376b693822c3e158f451c4e8ff6717a32b4769c67b0f8
SHA512

8411185cc72dc1a6f244f3aac9fc33913805c8c14f721ede81fc218d568769eea52ad6791c1ed5aea1ba6a24d9a251a525a8e28fab4e27318234bea359820538
SSDEEP

3072:MsoUeNegfPRAfLRc/OJfmiV6H83ayvo+GaEU4BqItVW9Kgzi2VI32lXS/:wQgA6qbVv3aDUEUutVW9Ke2eXS/

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
1472	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
1804	4732	WerFault.exe	81
4656	4732	WerFault.exe	81
4564	4732	WerFault.exe	81
3972	4732	WerFault.exe	81
220	4732	WerFault.exe	81
3476	4732	WerFault.exe	81
5004	4732	WerFault.exe	81
2608	4732	WerFault.exe	81
4364	4732	WerFault.exe	81
4588	4732	WerFault.exe	81
3224	4732	WerFault.exe	81
5052	4732	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
4720	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4732	file.exe
4732	file.exe
4732	file.exe
4732	file.exe
4732	file.exe
4732	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4732	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1472	Cleaner.exe
Token: SeDebugPrivilege	4720	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 2204	4732	file.exe	106
PID 4732 wrote to memory of 2204	4732	file.exe	106
PID 4732 wrote to memory of 2204	4732	file.exe	106
PID 2204 wrote to memory of 1472	2204	cmd.exe	108
PID 2204 wrote to memory of 1472	2204	cmd.exe	108
PID 4732 wrote to memory of 3828	4732	file.exe	118
PID 4732 wrote to memory of 3828	4732	file.exe	118
PID 4732 wrote to memory of 3828	4732	file.exe	118
PID 3828 wrote to memory of 4720	3828	cmd.exe	122
PID 3828 wrote to memory of 4720	3828	cmd.exe	122
PID 3828 wrote to memory of 4720	3828	cmd.exe	122

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:4732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 456
  2⤵
  - Program crash
  PID:1804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 776
  2⤵
  - Program crash
  PID:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 804
  2⤵
  - Program crash
  PID:4564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 804
  2⤵
  - Program crash
  PID:3972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 840
  2⤵
  - Program crash
  PID:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 928
  2⤵
  - Program crash
  PID:3476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 932
  2⤵
  - Program crash
  PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 1088
  2⤵
  - Program crash
  PID:2608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 1388
  2⤵
  - Program crash
  PID:4364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\VtddKfy9SkBd8yg\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Users\Admin\AppData\Local\Temp\VtddKfy9SkBd8yg\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\VtddKfy9SkBd8yg\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 1400
  2⤵
  - Program crash
  PID:4588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 1688
  2⤵
  - Program crash
  PID:3224
- 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:3828
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 1700
  2⤵
  - Program crash
  PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4732 -ip 4732
1⤵
PID:3816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4732 -ip 4732
1⤵
PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4732 -ip 4732
1⤵
PID:3172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4732 -ip 4732
1⤵
PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4732 -ip 4732
1⤵
PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4732 -ip 4732
1⤵
PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4732 -ip 4732
1⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4732 -ip 4732
1⤵
PID:5032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4732 -ip 4732
1⤵
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4732 -ip 4732
1⤵
PID:1096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4732 -ip 4732
1⤵
PID:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4732 -ip 4732
1⤵
PID:4504

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\VtddKfy9SkBd8yg\Bunifu_UI_v1.5.3.dll

Filesize
236KB

MD5
2ecb51ab00c5f340380ecf849291dbcf

SHA1
1a4dffbce2a4ce65495ed79eab42a4da3b660931

SHA256
f1b3e0f2750a9103e46a6a4a34f1cf9d17779725f98042cc2475ec66484801cf

SHA512
e241a48eafcaf99187035f0870d24d74ae97fe84aaadd2591cceea9f64b8223d77cfb17a038a58eadd3b822c5201a6f7494f26eea6f77d95f77f6c668d088e6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\VtddKfy9SkBd8yg\Cleaner.exe

Filesize
4.0MB

MD5
a1a19faf0af29841daeeaad999d899bd

SHA1
f67b9afdab167d5bcc544358b0e7fd2858784508

SHA256
f349739486dcb45f7cd39440784224c66a5d2c4bd2a47c48606e2f481a0fabe7

SHA512
a66ec486262e797bafd4fa032a719e499217993479fa78938e43db13289fe6fefc0ef3c3359e3cacb6223134396852be7cc9122c46ae74db3e9842d7f4fe65a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\VtddKfy9SkBd8yg\Cleaner.exe

Filesize
4.0MB

MD5
a1a19faf0af29841daeeaad999d899bd

SHA1
f67b9afdab167d5bcc544358b0e7fd2858784508

SHA256
f349739486dcb45f7cd39440784224c66a5d2c4bd2a47c48606e2f481a0fabe7

SHA512
a66ec486262e797bafd4fa032a719e499217993479fa78938e43db13289fe6fefc0ef3c3359e3cacb6223134396852be7cc9122c46ae74db3e9842d7f4fe65a8

Download Submit
memory/1472-142-0x00007FF8B3220000-0x00007FF8B3CE1000-memory.dmp

Filesize
10.8MB

Download
memory/1472-145-0x00007FF8B3220000-0x00007FF8B3CE1000-memory.dmp

Filesize
10.8MB

Download
memory/1472-141-0x000002875F350000-0x000002875F392000-memory.dmp

Filesize
264KB

Download
memory/1472-139-0x000002875D540000-0x000002875D698000-memory.dmp

Filesize
1.3MB

Download
memory/4732-133-0x00000000022D0000-0x000000000230F000-memory.dmp

Filesize
252KB

Download
memory/4732-134-0x0000000000400000-0x0000000000596000-memory.dmp

Filesize
1.6MB

Download
memory/4732-132-0x000000000066D000-0x0000000000693000-memory.dmp

Filesize
152KB

Download
memory/4732-143-0x000000000066D000-0x0000000000693000-memory.dmp

Filesize
152KB

Download
memory/4732-144-0x0000000000400000-0x0000000000596000-memory.dmp

Filesize
1.6MB

Download
memory/4732-146-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4732-152-0x000000000066D000-0x0000000000693000-memory.dmp

Filesize
152KB

Download
memory/4732-153-0x0000000000400000-0x0000000000596000-memory.dmp

Filesize
1.6MB

Download