nymaim | 298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff

General

Target

298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe
Size

325KB
MD5

5b9d4664c506bb4b3d0f07a43d4dbd97
SHA1

7fb7dba9f978f2adcd6da1902a7a65dd44b12720
SHA256

298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff
SHA512

db565070e68e815cb4dd38bd4c7efa91ca049dc98e2f8ff40896d04debf6087c2626092165079e77bd4a9d56c9f00b8f1d74be750491b90c6af1403227a5127e
SSDEEP

3072:/EXO1nq2MxViHsnq5n3r6HxophUz6ktkM8bf4Avp2ZEfqqJ5ew3LlgtI17Df/Ts3:4qqMsUmHUhEtAQAcEfq2pblOIf1pm0

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.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 9 IoCs

pid	pid_target	Process	procid_target
4560	1780	WerFault.exe	81
2316	1780	WerFault.exe	81
4388	1780	WerFault.exe	81
2060	1780	WerFault.exe	81
2824	1780	WerFault.exe	81
1968	1780	WerFault.exe	81
4540	1780	WerFault.exe	81
2252	1780	WerFault.exe	81
1384	1780	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
4592	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4592	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2944	1780	298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe	105
PID 1780 wrote to memory of 2944	1780	298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe	105
PID 1780 wrote to memory of 2944	1780	298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe	105
PID 2944 wrote to memory of 4592	2944	cmd.exe	109
PID 2944 wrote to memory of 4592	2944	cmd.exe	109
PID 2944 wrote to memory of 4592	2944	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe
"C:\Users\Admin\AppData\Local\Temp\298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 464
  2⤵
  - Program crash
  PID:4560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 764
  2⤵
  - Program crash
  PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 804
  2⤵
  - Program crash
  PID:4388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 764
  2⤵
  - Program crash
  PID:2060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 856
  2⤵
  - Program crash
  PID:2824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 888
  2⤵
  - Program crash
  PID:1968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1004
  2⤵
  - Program crash
  PID:4540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1372
  2⤵
  - Program crash
  PID:2252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2944
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "298b18e8f8cdda24a7183067de9fcab29419f800ef95ab06499af361da0c07ff.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 512
  2⤵
  - Program crash
  PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1780 -ip 1780
1⤵
PID:1708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1780 -ip 1780
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1780 -ip 1780
1⤵
PID:4340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1780 -ip 1780
1⤵
PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1780 -ip 1780
1⤵
PID:1184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1780 -ip 1780
1⤵
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1780 -ip 1780
1⤵
PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1780 -ip 1780
1⤵
PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1780 -ip 1780
1⤵
PID:4432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1780-132-0x0000000002DF7000-0x0000000002E1E000-memory.dmp

Filesize
156KB

Download
memory/1780-133-0x0000000002D90000-0x0000000002DD0000-memory.dmp

Filesize
256KB

Download
memory/1780-134-0x0000000000400000-0x0000000002C3E000-memory.dmp

Filesize
40.2MB

Download
memory/1780-135-0x0000000002DF7000-0x0000000002E1E000-memory.dmp

Filesize
156KB

Download
memory/1780-136-0x0000000000400000-0x0000000002C3E000-memory.dmp

Filesize
40.2MB

Download
memory/1780-139-0x0000000002DF7000-0x0000000002E1E000-memory.dmp

Filesize
156KB

Download
memory/1780-140-0x0000000000400000-0x0000000002C3E000-memory.dmp

Filesize
40.2MB

Download

Analysis

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