a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b

General

Target

a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe
Size

295KB
MD5

932e5450cda4ca9e248d46b26cbdab77
SHA1

8ac22e666666b7b2f1409c7c9434e8a8e94fbaef
SHA256

a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b
SHA512

fed26be3c1f97bef69a46849dbe184ae01c4373c9a75cd416eccd56f4b578ef1b25554742317e5f0ed3cfa01f6c95c1c0c6c50a6a26eb297a59e8f9b5a778c6e
SSDEEP

3072:FRmEC2Oi8NXC797F8TBfFvj4bq57obWJ/e9weDlhdKP1nBR:FPC2F8NXC796TB9vj48EVweDLMPpr

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5000	Microsoft SQL server c++.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1760	netsh.exe

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\432d87ad7de76fc589b87e10aca4ed49.exe	Microsoft SQL server c++.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\432d87ad7de76fc589b87e10aca4ed49.exe	Microsoft SQL server c++.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\432d87ad7de76fc589b87e10aca4ed49 = "\"C:\\ProgramData\\Microsoft SQL server c++.exe\" .."	Microsoft SQL server c++.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\432d87ad7de76fc589b87e10aca4ed49 = "\"C:\\ProgramData\\Microsoft SQL server c++.exe\" .."	Microsoft SQL server c++.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe
5000	Microsoft SQL server c++.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5000	Microsoft SQL server c++.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 5000	2856	a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe	83
PID 2856 wrote to memory of 5000	2856	a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe	83
PID 2856 wrote to memory of 5000	2856	a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe	83
PID 5000 wrote to memory of 1760	5000	Microsoft SQL server c++.exe	84
PID 5000 wrote to memory of 1760	5000	Microsoft SQL server c++.exe	84
PID 5000 wrote to memory of 1760	5000	Microsoft SQL server c++.exe	84

C:\Users\Admin\AppData\Local\Temp\a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe
"C:\Users\Admin\AppData\Local\Temp\a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2856
- C:\ProgramData\Microsoft SQL server c++.exe
  "C:\ProgramData\Microsoft SQL server c++.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\Microsoft SQL server c++.exe" "Microsoft SQL server c++.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

C:\ProgramData\Microsoft SQL server c++.exe

Filesize
295KB

MD5
932e5450cda4ca9e248d46b26cbdab77

SHA1
8ac22e666666b7b2f1409c7c9434e8a8e94fbaef

SHA256
a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b

SHA512
fed26be3c1f97bef69a46849dbe184ae01c4373c9a75cd416eccd56f4b578ef1b25554742317e5f0ed3cfa01f6c95c1c0c6c50a6a26eb297a59e8f9b5a778c6e

Download Submit
C:\ProgramData\Microsoft SQL server c++.exe

Filesize
295KB

MD5
932e5450cda4ca9e248d46b26cbdab77

SHA1
8ac22e666666b7b2f1409c7c9434e8a8e94fbaef

SHA256
a81830ea05136236c334a0e4c0a0880043260cb8e7aea7e14482bc4839c6287b

SHA512
fed26be3c1f97bef69a46849dbe184ae01c4373c9a75cd416eccd56f4b578ef1b25554742317e5f0ed3cfa01f6c95c1c0c6c50a6a26eb297a59e8f9b5a778c6e

Download Submit
memory/2856-133-0x0000000000520000-0x0000000000552000-memory.dmp

Filesize
200KB

Download
memory/2856-136-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/2856-143-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/5000-144-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/5000-146-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download

Analysis

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