58ef22907d0348a6eb18e023546ba83b46a0fa61e87cadc2873a5ec59e2cba9a

Analysis

max time kernel
96s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 16:03

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General

Target

2b89af2431cfd7e3c2262e978b9b605c.dll
Size

64KB
MD5

2b89af2431cfd7e3c2262e978b9b605c
SHA1

62280e205288cb4c9635b9280a8fc561d3bbd97a
SHA256

58ef22907d0348a6eb18e023546ba83b46a0fa61e87cadc2873a5ec59e2cba9a
SHA512

e38e7312f28fb94b9ab0d25ce1f5a869a5483c5a95840ac6777a5c89f19e52d8a224f0cbeb4297ddc6b7d08de0123c6a48cf571dfef6f08d5c417f288cd07bb0
SSDEEP

768:yBZRFIzD/mjNgXFVdl6ih18ORsWsDL6KhjWCpRI+CTnQIItL2FN9wBq+a:yPCcdiZsWmFZRIxOL2FN9ara

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\Local Settings	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
736	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1204	rundll32.exe
1204	rundll32.exe
1204	rundll32.exe
1204	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 1204	316	rundll32.exe	14
PID 316 wrote to memory of 1204	316	rundll32.exe	14
PID 316 wrote to memory of 1204	316	rundll32.exe	14
PID 1204 wrote to memory of 3116	1204	rundll32.exe	19
PID 1204 wrote to memory of 3116	1204	rundll32.exe	19
PID 1204 wrote to memory of 3116	1204	rundll32.exe	19
PID 3116 wrote to memory of 736	3116	cmd.exe	22
PID 3116 wrote to memory of 736	3116	cmd.exe	22
PID 3116 wrote to memory of 736	3116	cmd.exe	22

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b89af2431cfd7e3c2262e978b9b605c.dll,#1
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\SysWOW64\regedit.exe
    "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
    3⤵
    - Runs .reg file with regedit
    PID:736

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b89af2431cfd7e3c2262e978b9b605c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

Download Submit
memory/1204-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

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