nymaim | aa232b0a580dcc13a01b8920df0146953b8f23a6372cfcfc36828e820a262b6f

Analysis

max time kernel
47s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
17/09/2022, 01:56

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General

Target
file.exe
Size 391KB
Sample220917-ccph4achdp
SHA256 aa232b0a580dcc13a01b8920df0146953b8f23a6372cfcfc36828e820a262b6f
MD5 1f73368fcc1a345ae676e3c5a2eac349
SHA1 a30daed68e4d27387dfa95781d7a43beda4a4a3d
SHA512 61cc9394ffc88a35a37eb9d6673c81b7716273a87a8ef3be66ab9b4f9911d0ed1001c5bb087099f8d23ce5b6134e93eb47e40344d0f93c48a9391c29013475fa
SSDEEP 6144:2ZuOLu3L0Yu+fG8chokSLJEQcNn2dQeppSTwJe2XGoLt0NzYCInigabwVf:2Z7a3wD51SLJCVKe26Nqi
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

Deletes itself 1 IoCs

pid	Process
820	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

pid	Process
1080	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1080	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 820	1444	file.exe	29
PID 1444 wrote to memory of 820	1444	file.exe	29
PID 1444 wrote to memory of 820	1444	file.exe	29
PID 1444 wrote to memory of 820	1444	file.exe	29
PID 820 wrote to memory of 1080	820	cmd.exe	31
PID 820 wrote to memory of 1080	820	cmd.exe	31
PID 820 wrote to memory of 1080	820	cmd.exe	31
PID 820 wrote to memory of 1080	820	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1444
- 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⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:820
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1444-54-0x0000000075D71000-0x0000000075D73000-memory.dmp

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memory/1444-56-0x0000000000230000-0x0000000000272000-memory.dmp

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memory/1444-55-0x00000000005BB000-0x00000000005E2000-memory.dmp

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memory/1444-57-0x0000000000400000-0x0000000000467000-memory.dmp

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memory/1444-59-0x00000000005BB000-0x00000000005E2000-memory.dmp

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memory/1444-60-0x0000000000400000-0x0000000000467000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads