fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a

General

Target

fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe
Size

16.6MB
MD5

a4ee3ed90cfe37b966eea81519abfea5
SHA1

95931de0aa6d96568acebc11e551e8e1305bf003
SHA256

fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a
SHA512

ca3686c8ed2808d046d8247df110aa3c72266aeb7ffb65a82187c0d9cfe6c72b1c0ca1b20d830876067e64bfee8dae38abd53a3a6a9cd493138b1a43379f121c
SSDEEP

393216:EWZZAS/MwIOGiSZFAqOTYGDTCSq//svd:EYZP/MwIS5m//

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2152	svcss.exe
476	Process not Found
2728	svcss.exe

Loads dropped DLL 2 IoCs

pid	Process
2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe
2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe

Runs net.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2152	2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe	30
PID 2092 wrote to memory of 2152	2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe	30
PID 2092 wrote to memory of 2152	2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe	30
PID 2092 wrote to memory of 2152	2092	fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe	30
PID 2728 wrote to memory of 2900	2728	svcss.exe	33
PID 2728 wrote to memory of 2900	2728	svcss.exe	33
PID 2728 wrote to memory of 2900	2728	svcss.exe	33
PID 2900 wrote to memory of 2876	2900	cmd.exe	35
PID 2900 wrote to memory of 2876	2900	cmd.exe	35
PID 2900 wrote to memory of 2876	2900	cmd.exe	35
PID 2844 wrote to memory of 2936	2844	taskeng.exe	37
PID 2844 wrote to memory of 2936	2844	taskeng.exe	37
PID 2844 wrote to memory of 2936	2844	taskeng.exe	37
PID 2936 wrote to memory of 2848	2936	cmd.exe	39
PID 2936 wrote to memory of 2848	2936	cmd.exe	39
PID 2936 wrote to memory of 2848	2936	cmd.exe	39
PID 2848 wrote to memory of 2980	2848	net.exe	40
PID 2848 wrote to memory of 2980	2848	net.exe	40
PID 2848 wrote to memory of 2980	2848	net.exe	40

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe
"C:\Users\Admin\AppData\Local\Temp\fb1a6ccea5888ad4acd8465efe8555bce2883c24a3b92bab189f079b82a9df3a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- C:\ProgramData\MicrosoftSMM\svcss.exe
  "C:\ProgramData\MicrosoftSMM\svcss.exe" /install
  2⤵
  - Executes dropped EXE
  PID:2152

C:\ProgramData\MicrosoftSMM\svcss.exe
C:\ProgramData\MicrosoftSMM\svcss.exe /startedbyscm:00D244E7-B5119CE0-UpdateStorServ
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\system32\cmd.exe
  cmd.exe /C schtasks /query /TN "Monitor Service"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\system32\schtasks.exe
    schtasks /query /TN "Monitor Service"
    3⤵
    PID:2876

C:\Windows\system32\taskeng.exe
taskeng.exe {B2F89629-20D4-43F0-81A5-9B99F06A165F} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\system32\cmd.exe
  cmd.exe /c net start "UpdateStorServ"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\system32\net.exe
    net start "UpdateStorServ"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 start "UpdateStorServ"
      4⤵
      PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\MicrosoftSMM\svcss.exe

Filesize
13.3MB

MD5
b66b904185a9e881b77fcbcca7bcb125

SHA1
4b07391434332e4f8faadf61f288e48389bcea08

SHA256
3c0be13be97c2b7ac3737997bb56f604a947b4d404456f644b2af4be4f9c17d2

SHA512
03d05f0bd94c0d1956be4949aa29a99bc0f1f8a3812d90fc4be3338cb596056bb3d37e865b3d29e8107ab945e79f3068ae4d85189927d8544855acaee9e3db59

Download Submit
memory/2092-0-0x0000000002EF0000-0x0000000003170000-memory.dmp

Filesize
2.5MB

Download
memory/2092-19-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/2152-14-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2152-15-0x0000000003FC0000-0x0000000004401000-memory.dmp

Filesize
4.3MB

Download
memory/2152-16-0x0000000000400000-0x000000000116B000-memory.dmp

Filesize
13.4MB

Download
memory/2728-22-0x0000000000400000-0x000000000116B000-memory.dmp

Filesize
13.4MB

Download

Analysis

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