a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

Analysis

max time kernel
189s
max time network
203s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 10:10

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General

Target

a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe
Size

21KB
MD5

33132384cb4bf2e475c3670bf592dfb7
SHA1

61f850235516e56d4d6defe7e4777a9e85d4aac7
SHA256

a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115
SHA512

61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44
SSDEEP

384:gi4Xm1G9WXnsagorpzOk+xk5qRS3xooZ/Kz/l2tB8bu1w1sdzyDgTXl2:giGxAXT8EYRyvZ/Kz/l2tBha1wyDgh

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3616	svchost.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2684-132-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/files/0x0006000000022c0f-134.dat	upx
behavioral2/files/0x0006000000022c0f-135.dat	upx
behavioral2/memory/2684-136-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/3616-137-0x0000000000400000-0x0000000000416000-memory.dmp	upx

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\svchost.exe"	svchost.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 3616	2684	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	82
PID 2684 wrote to memory of 3616	2684	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	82
PID 2684 wrote to memory of 3616	2684	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	82

C:\Users\Admin\AppData\Local\Temp\a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe
"C:\Users\Admin\AppData\Local\Temp\a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Microsoft\svchost.exe
  "C:\Users\Admin\AppData\Local\Microsoft\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:3616

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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:\Users\Admin\AppData\Local\Microsoft\svchost.exe

Filesize
21KB

MD5
33132384cb4bf2e475c3670bf592dfb7

SHA1
61f850235516e56d4d6defe7e4777a9e85d4aac7

SHA256
a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

SHA512
61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\svchost.exe

Filesize
21KB

MD5
33132384cb4bf2e475c3670bf592dfb7

SHA1
61f850235516e56d4d6defe7e4777a9e85d4aac7

SHA256
a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

SHA512
61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44

Download Submit
memory/2684-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2684-136-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3616-137-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download