a4266e47fd1b17b91b44a4a2f258ec1e292f2d16315ff8020c1242f2c14b0688

Analysis

max time kernel
159s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 02:30

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General

Target

248980536e8aaddc4f5cd23e285d5b9a.exe
Size

365KB
MD5

248980536e8aaddc4f5cd23e285d5b9a
SHA1

ec027dfb1e5ec87dd4f9f8069fbf932229034051
SHA256

a4266e47fd1b17b91b44a4a2f258ec1e292f2d16315ff8020c1242f2c14b0688
SHA512

4befdf49ce2f54d086dc158e67906d157fd97934d8277b5d633d3e2db788647ee73edc620c1f92ca7d59f054ec936dbb3af734b6973eeda311cd8041610cdc1d
SSDEEP

6144:yPs5yw65yeVG/nYYcptk30fgZpKj6OxcQp7pQR1O:NghHVwYZ2QmO1W1O

Score

7^/10

persistence

Malware Config

Signatures

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	248980536e8aaddc4f5cd23e285d5b9a.exe

Executes dropped EXE 1 IoCs

pid	Process
3288	16042.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\varas = "C:\\Windows\\16042.exe"	248980536e8aaddc4f5cd23e285d5b9a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\varas = "C:\\Windows\\16042.exe"	248980536e8aaddc4f5cd23e285d5b9a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\16042.exe	248980536e8aaddc4f5cd23e285d5b9a.exe
File created	C:\Windows\dfce766b3.imb	248980536e8aaddc4f5cd23e285d5b9a.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1736	248980536e8aaddc4f5cd23e285d5b9a.exe
3288	16042.exe
3288	16042.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 3288	1736	248980536e8aaddc4f5cd23e285d5b9a.exe	97
PID 1736 wrote to memory of 3288	1736	248980536e8aaddc4f5cd23e285d5b9a.exe	97
PID 1736 wrote to memory of 3288	1736	248980536e8aaddc4f5cd23e285d5b9a.exe	97

C:\Users\Admin\AppData\Local\Temp\248980536e8aaddc4f5cd23e285d5b9a.exe
"C:\Users\Admin\AppData\Local\Temp\248980536e8aaddc4f5cd23e285d5b9a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\16042.exe
  "C:\Windows\16042.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3288

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

Replay Monitor

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Downloads

C:\Windows\16042.exe

Filesize
224KB

MD5
82f17ee53e15b045cb9263a6bb8962d0

SHA1
a140d17ecb74761fea72a58f6ce544eb1cf999a8

SHA256
694a3ac39964cd7b58b12a6767de21407645c153c40748ed272df9304aea0808

SHA512
0b88d89243d941fc946da6d1c7cff58d98b22f5f28bb0aaf5ea8478aadc1936a0da181c030fffe87f1876c446d946e55dedf2e17d551f57b4e2e77403e1d98c0

Download Submit
C:\Windows\dfce766b3.imb

Filesize
439B

MD5
6f32fc687f92feaed10338226b6389f6

SHA1
0d4542e53d318127dcff9ea574ab015489a6142b

SHA256
874d1880a7c2834087b715cdb2a3fc62fff14ef12d138777df62b859f49ed208

SHA512
9bb38d68f84d617f822ea1316e4c583b874f22c45a9d9f8095f5f4362ca839219133d7816fde67fc8e188c2d536289f75a9f039c9844f142f53055cb9467d084

Download Submit
memory/1736-0-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1736-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1736-22-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3288-16-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3288-18-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3288-19-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3288-21-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3288-30-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads