nymaim | ffc415d99e35512b281f93eaa46055035efc1ee5635fec25b2c1ff1771374a68

Analysis

max time kernel
123s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2022, 13:21

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General

Target

file.exe
Size

367KB
MD5

89211f5f9092f9d78de071e5d29d9300
SHA1

6a189bc431287ccea5600e3409c174027136322a
SHA256

ffc415d99e35512b281f93eaa46055035efc1ee5635fec25b2c1ff1771374a68
SHA512

9d0d3a0d3f8989df597e82f09a135c2e4a86dd579dd607eabe13a4a5962219e7ecd04c225824d21b17a68035e4d3264123ad7b30114d34cf7ce6f48a0bb38e78
SSDEEP

6144:sm1kqMLjz7p9RxtvF4TfWerihaa3WWuzbgwuRgwVfU:smaqMXz7pr/F4Tfn+unnJ

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
2588	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

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0016000000022e4e-139.dat	autoit_exe
behavioral2/files/0x0016000000022e4e-140.dat	autoit_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 13 IoCs

pid	pid_target	Process	procid_target
2248	3988	WerFault.exe	79
1808	3988	WerFault.exe	79
4856	3988	WerFault.exe	79
4800	3988	WerFault.exe	79
1044	3988	WerFault.exe	79
1532	3988	WerFault.exe	79
480	3988	WerFault.exe	79
3552	3988	WerFault.exe	79
4372	3988	WerFault.exe	79
2776	2588	WerFault.exe	109
4420	3988	WerFault.exe	79
2860	3988	WerFault.exe	79
3920	3988	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
1892	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3988	file.exe
3988	file.exe
3988	file.exe
3988	file.exe
3988	file.exe
3988	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3988	file.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 3636	3988	file.exe	107
PID 3988 wrote to memory of 3636	3988	file.exe	107
PID 3988 wrote to memory of 3636	3988	file.exe	107
PID 3636 wrote to memory of 2588	3636	cmd.exe	109
PID 3636 wrote to memory of 2588	3636	cmd.exe	109
PID 3988 wrote to memory of 4812	3988	file.exe	117
PID 3988 wrote to memory of 4812	3988	file.exe	117
PID 3988 wrote to memory of 4812	3988	file.exe	117
PID 4812 wrote to memory of 1892	4812	cmd.exe	121
PID 4812 wrote to memory of 1892	4812	cmd.exe	121
PID 4812 wrote to memory of 1892	4812	cmd.exe	121

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:3988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 452
  2⤵
  - Program crash
  PID:2248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 764
  2⤵
  - Program crash
  PID:1808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 784
  2⤵
  - Program crash
  PID:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 784
  2⤵
  - Program crash
  PID:4800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 856
  2⤵
  - Program crash
  PID:1044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 920
  2⤵
  - Program crash
  PID:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 924
  2⤵
  - Program crash
  PID:480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 1048
  2⤵
  - Program crash
  PID:3552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 1392
  2⤵
  - Program crash
  PID:4372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\ai1RBc9mzPXpxdtsvSruBFwTTsnnu\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3636
- - C:\Users\Admin\AppData\Local\Temp\ai1RBc9mzPXpxdtsvSruBFwTTsnnu\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\ai1RBc9mzPXpxdtsvSruBFwTTsnnu\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    PID:2588
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2588 -s 972
      4⤵
      Program crash
      PID:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 1408
  2⤵
  - Program crash
  PID:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 1712
  2⤵
  - Program crash
  PID:2860
- 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:4812
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 492
  2⤵
  - Program crash
  PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3988 -ip 3988
1⤵
PID:4524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3988 -ip 3988
1⤵
PID:764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3988 -ip 3988
1⤵
PID:4216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3988 -ip 3988
1⤵
PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3988 -ip 3988
1⤵
PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3988 -ip 3988
1⤵
PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3988 -ip 3988
1⤵
PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3988 -ip 3988
1⤵
PID:1692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3988 -ip 3988
1⤵
PID:424

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 536 -p 2588 -ip 2588
1⤵
PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3988 -ip 3988
1⤵
PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3988 -ip 3988
1⤵
PID:2296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 3988 -ip 3988
1⤵
PID:1684

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ai1RBc9mzPXpxdtsvSruBFwTTsnnu\Cleaner.exe

Filesize
3.8MB

MD5
04514bd4962f7d60679434e0ebe49184

SHA1
1493a5447eb8156a7d7aecff60ee8bfba2209526

SHA256
c394b068aa87264419f60838a8812b750e67cf93f2494c62b9078c3708072568

SHA512
a71c7ed5dfdda22f095dc99b16e8342a42e3361be16e0241dbf8983dd0d5f6e90eb0299aac1815cf78ad3a9f15fa89b42b720b7f818ee5f502300f102ef4c93e

Download Submit
C:\Users\Admin\AppData\Local\Temp\ai1RBc9mzPXpxdtsvSruBFwTTsnnu\Cleaner.exe

Filesize
3.8MB

MD5
04514bd4962f7d60679434e0ebe49184

SHA1
1493a5447eb8156a7d7aecff60ee8bfba2209526

SHA256
c394b068aa87264419f60838a8812b750e67cf93f2494c62b9078c3708072568

SHA512
a71c7ed5dfdda22f095dc99b16e8342a42e3361be16e0241dbf8983dd0d5f6e90eb0299aac1815cf78ad3a9f15fa89b42b720b7f818ee5f502300f102ef4c93e

Download Submit
memory/2588-143-0x00007FF963590000-0x00007FF964051000-memory.dmp

Filesize
10.8MB

Download
memory/2588-142-0x00007FF963590000-0x00007FF964051000-memory.dmp

Filesize
10.8MB

Download
memory/2588-141-0x000001F2CFD80000-0x000001F2CFED6000-memory.dmp

Filesize
1.3MB

Download
memory/3988-136-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3988-132-0x00000000004DC000-0x0000000000502000-memory.dmp

Filesize
152KB

Download
memory/3988-135-0x00000000004DC000-0x0000000000502000-memory.dmp

Filesize
152KB

Download
memory/3988-134-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3988-144-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/3988-133-0x00000000020A0000-0x00000000020DF000-memory.dmp

Filesize
252KB

Download
memory/3988-150-0x00000000004DC000-0x0000000000502000-memory.dmp

Filesize
152KB

Download
memory/3988-151-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download