nymaim | 76570c3512e1e913e5038e6f80896703f842ce5c5a412a24fbda7e342c2fe155

Analysis

max time kernel
102s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2022, 18:23

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
file.exe
Size 290KB
Sample220925-w1f2eagher
SHA256 76570c3512e1e913e5038e6f80896703f842ce5c5a412a24fbda7e342c2fe155
MD5 e691ef78f8984b6c59d9b9bd69d1807b
SHA1 60b54a2f243caa82ee50e912c2cd325153e3ff9a
SHA512 121b7c13deb3a6bd34e0421330650983160dd17b12aa705ed625168dc8f67da85e4d9afbc09bcce9e57bfece0e57654a5f96a24071791af57e3f62b3680f1bb1
SSDEEP 3072:zmFqobuWLIEz5K4zBT56QFlJEy4pH3en2feID98B4WtRIwNBSOpKtUJ3YdKBydYb:ELi4zB1llJEy4pO2mfSmIwvSOUKYdD
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
2240	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-1-5-21-929662420-1054238289-2961194603-1000\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
2312	3752	WerFault.exe	83
668	3752	WerFault.exe	83
2424	3752	WerFault.exe	83
1796	3752	WerFault.exe	83
2780	3752	WerFault.exe	83
1288	3752	WerFault.exe	83
1976	3752	WerFault.exe	83
5100	3752	WerFault.exe	83
3888	3752	WerFault.exe	83
2340	3752	WerFault.exe	83
4984	3752	WerFault.exe	83
2712	3752	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
3612	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3752	file.exe
3752	file.exe
3752	file.exe
3752	file.exe
3752	file.exe
3752	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3752	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	Cleaner.exe
Token: SeDebugPrivilege	3612	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3752 wrote to memory of 3464	3752	file.exe	112
PID 3752 wrote to memory of 3464	3752	file.exe	112
PID 3752 wrote to memory of 3464	3752	file.exe	112
PID 3464 wrote to memory of 2240	3464	cmd.exe	114
PID 3464 wrote to memory of 2240	3464	cmd.exe	114
PID 3752 wrote to memory of 3912	3752	file.exe	126
PID 3752 wrote to memory of 3912	3752	file.exe	126
PID 3752 wrote to memory of 3912	3752	file.exe	126
PID 3912 wrote to memory of 3612	3912	cmd.exe	130
PID 3912 wrote to memory of 3612	3912	cmd.exe	130
PID 3912 wrote to memory of 3612	3912	cmd.exe	130

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:3752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 464
  2⤵
  - Program crash
  PID:2312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 772
  2⤵
  - Program crash
  PID:668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 772
  2⤵
  - Program crash
  PID:2424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 772
  2⤵
  - Program crash
  PID:1796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 808
  2⤵
  - Program crash
  PID:2780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 928
  2⤵
  - Program crash
  PID:1288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1000
  2⤵
  - Program crash
  PID:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1028
  2⤵
  - Program crash
  PID:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1388
  2⤵
  - Program crash
  PID:3888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\icluBMIE\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Users\Admin\AppData\Local\Temp\icluBMIE\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\icluBMIE\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1404
  2⤵
  - Program crash
  PID:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1808
  2⤵
  - Program crash
  PID:4984
- 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:3912
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 512
  2⤵
  - Program crash
  PID:2712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3752 -ip 3752
1⤵
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3752 -ip 3752
1⤵
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3752 -ip 3752
1⤵
PID:3372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3752 -ip 3752
1⤵
PID:448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3752 -ip 3752
1⤵
PID:1320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3752 -ip 3752
1⤵
PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3752 -ip 3752
1⤵
PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 656 -p 3752 -ip 3752
1⤵
PID:852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 3752 -ip 3752
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 3752 -ip 3752
1⤵
PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 3752 -ip 3752
1⤵
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 3752 -ip 3752
1⤵
PID:4188

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\icluBMIE\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\icluBMIE\Cleaner.exe
Size 3.8MB
SHA256 301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c
MD5 23c1e8f48ec06960bbd9969c1f404192
SHA1 b9384151eb3f2dbd095fa273c248722e1cc74ea3
SHA512 f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b
SSDEEP 49152:W/PD/DL/D9CuZrr2h60qPAnDfvl/DK1zAb2ibtbelHi2btsTBrfwWXRxL56ZD0Mp:W3D///UUrPmfvVDWASmXnMn
MD5 SHA1 SHA512 SSDEEP

Submit Download

Cleaner.exe

Path C:\Users\Admin\AppData\Local\Temp\icluBMIE\Cleaner.exe
Size 3.8MB
SHA256 301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c
MD5 23c1e8f48ec06960bbd9969c1f404192
SHA1 b9384151eb3f2dbd095fa273c248722e1cc74ea3
SHA512 f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b
SSDEEP 49152:W/PD/DL/D9CuZrr2h60qPAnDfvl/DK1zAb2ibtbelHi2btsTBrfwWXRxL56ZD0Mp:W3D///UUrPmfvVDWASmXnMn
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2240-140-0x000002BEFF5E0000-0x000002BEFF760000-memory.dmp

Download

memory/2240-145-0x00007FFAB61F0000-0x00007FFAB6CB1000-memory.dmp

Download

memory/2240-144-0x00007FFAB61F0000-0x00007FFAB6CB1000-memory.dmp

Download

memory/2240-143-0x000002BEFFA70000-0x000002BEFFAB2000-memory.dmp

Download

memory/3752-133-0x00000000021D0000-0x000000000220F000-memory.dmp

Download

memory/3752-141-0x0000000000400000-0x00000000005A2000-memory.dmp

Download

memory/3752-139-0x0000000000749000-0x0000000000770000-memory.dmp

Download

memory/3752-132-0x0000000000749000-0x0000000000770000-memory.dmp

Download

memory/3752-134-0x0000000000400000-0x00000000005A2000-memory.dmp

Download

memory/3752-146-0x0000000010000000-0x000000001001B000-memory.dmp

Download

memory/3752-152-0x0000000000749000-0x0000000000770000-memory.dmp

Download

memory/3752-153-0x0000000000400000-0x00000000005A2000-memory.dmp

Download