nymaim | 30bb0e3893bd496f910db1ef709cf766e1277e0b097363798acd32e2a13fb92d

Analysis

Target

1909dc145d81df639d4ad06a8b0b9933.exe
Size

372KB
MD5

1909dc145d81df639d4ad06a8b0b9933
SHA1

6021d97bd1b948cd072aa02a946999519225369f
SHA256

30bb0e3893bd496f910db1ef709cf766e1277e0b097363798acd32e2a13fb92d
SHA512

df35908ae1e731df25c6764f4d23da0f53396d40951d2ef96e64f3e94f0dea791cc97187473a943326055e612d1e489eceb0898282ee8f49c290f2a99e1cde06

Score

10^/10

nymaim trojan

Family

nymaim

37.0.8.39

31.210.20.149

212.192.241.16

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1152 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1264 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1264 taskkill.exe

pid	process
1152	cmd.exe

pid	process
1264	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1264	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1909dc145d81df639d4ad06a8b0b9933.execmd.exe

description	pid	process	target process
PID 1808 wrote to memory of 1152	1808	1909dc145d81df639d4ad06a8b0b9933.exe	cmd.exe
PID 1808 wrote to memory of 1152	1808	1909dc145d81df639d4ad06a8b0b9933.exe	cmd.exe
PID 1808 wrote to memory of 1152	1808	1909dc145d81df639d4ad06a8b0b9933.exe	cmd.exe
PID 1808 wrote to memory of 1152	1808	1909dc145d81df639d4ad06a8b0b9933.exe	cmd.exe
PID 1152 wrote to memory of 1264	1152	cmd.exe	taskkill.exe
PID 1152 wrote to memory of 1264	1152	cmd.exe	taskkill.exe
PID 1152 wrote to memory of 1264	1152	cmd.exe	taskkill.exe
PID 1152 wrote to memory of 1264	1152	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\1909dc145d81df639d4ad06a8b0b9933.exe
"C:\Users\Admin\AppData\Local\Temp\1909dc145d81df639d4ad06a8b0b9933.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1909dc145d81df639d4ad06a8b0b9933.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1909dc145d81df639d4ad06a8b0b9933.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1152
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1909dc145d81df639d4ad06a8b0b9933.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1264

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1152-56-0x0000000000000000-mapping.dmp

Download
memory/1264-60-0x0000000000000000-mapping.dmp

Download
memory/1808-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1808-55-0x0000000000CCB000-0x0000000000CF1000-memory.dmp

Filesize
152KB

Download
memory/1808-58-0x0000000000CCB000-0x0000000000CF1000-memory.dmp

Filesize
152KB

Download
memory/1808-57-0x0000000000250000-0x000000000028F000-memory.dmp

Filesize
252KB

Download
memory/1808-59-0x0000000000400000-0x0000000000B50000-memory.dmp

Filesize
7.3MB

Download