nymaim | 606325e9d37cb293eec47b365f7780ca76df929898d4960e5a3886dac277feb2

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11/09/2022, 14:18

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General

Target
d98be94092b60c3b379198dfa02326df.exe
Size 496KB
Sample220911-rmaj9afeck
SHA256 606325e9d37cb293eec47b365f7780ca76df929898d4960e5a3886dac277feb2
MD5 d98be94092b60c3b379198dfa02326df
SHA1 e510afb325d9783f0b0e391b560d4447381d94da
SHA512 9208d480db748604e451cf8ee6f57621640669aa17ef56418ba460165622c898ca90297fdd0f2b5f77b97372ce6cc7eb9ba57e1718455c89ec956b3cfe90b0e0
SSDEEP 6144:8JK1Cor6HvnQb0KlHOLXZc14gXLOCFxOjSMHaXXkF9cWbaVs9SU2BZZ:8JCCjHvGFQbeZOCPOjTHAkFiWbapUMH
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
824	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 828 set thread context of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28

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
1816	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1816	taskkill.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 828 wrote to memory of 1972	828	d98be94092b60c3b379198dfa02326df.exe	28
PID 1972 wrote to memory of 824	1972	d98be94092b60c3b379198dfa02326df.exe	31
PID 1972 wrote to memory of 824	1972	d98be94092b60c3b379198dfa02326df.exe	31
PID 1972 wrote to memory of 824	1972	d98be94092b60c3b379198dfa02326df.exe	31
PID 1972 wrote to memory of 824	1972	d98be94092b60c3b379198dfa02326df.exe	31
PID 824 wrote to memory of 1816	824	cmd.exe	33
PID 824 wrote to memory of 1816	824	cmd.exe	33
PID 824 wrote to memory of 1816	824	cmd.exe	33
PID 824 wrote to memory of 1816	824	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe
"C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:828
- C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe
  "C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im "d98be94092b60c3b379198dfa02326df.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d98be94092b60c3b379198dfa02326df.exe" & exit
    3⤵
    - Deletes itself
    - Suspicious use of WriteProcessMemory
    PID:824
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im "d98be94092b60c3b379198dfa02326df.exe" /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1816

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/828-59-0x0000000000400000-0x000000000044F000-memory.dmp

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memory/1972-54-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/1972-56-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/1972-60-0x0000000075A11000-0x0000000075A13000-memory.dmp

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memory/1972-61-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/1972-62-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/1972-64-0x0000000000400000-0x0000000000446000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads