ca5795709af3bc2e03ec02c7307d5c85a844c421e36afe30eb0f571e79342e87

Analysis

max time kernel
168s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
28/08/2022, 07:37

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General

Target
ae9e2ce4cf9b092a5bbfd1d5a609166e.exe
Size 184KB
Sample220828-jfs41sedak
SHA256 ca5795709af3bc2e03ec02c7307d5c85a844c421e36afe30eb0f571e79342e87
MD5 ae9e2ce4cf9b092a5bbfd1d5a609166e
SHA1 00c12ec16b5116403ae1a9923b114451880b741d
SHA512 54727c7931293b6498e20b602da13ff48498f2f52abde5cb79a412c128cda203db11f616f22d70f37cad51d8642f5ddc8e3e761a2300545da8a0f379612f15da
SSDEEP 3072:DBu/booFZs+4oOYcmtbRkF/pstBaDqwONnct43EpstBaDqwONnct43rBl3N2UR:DBu/boGUoOciF/p/uwONct43Ep/uwON/
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1500	3448	rundll32.exe	24

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	ae9e2ce4cf9b092a5bbfd1d5a609166e.exe

Loads dropped DLL 1 IoCs

pid	Process
3472	rundll32.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
2280	3472	WerFault.exe	89

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1020 wrote to memory of 4916	1020	ae9e2ce4cf9b092a5bbfd1d5a609166e.exe	84
PID 1020 wrote to memory of 4916	1020	ae9e2ce4cf9b092a5bbfd1d5a609166e.exe	84
PID 1020 wrote to memory of 4916	1020	ae9e2ce4cf9b092a5bbfd1d5a609166e.exe	84
PID 1500 wrote to memory of 3472	1500	rundll32.exe	89
PID 1500 wrote to memory of 3472	1500	rundll32.exe	89
PID 1500 wrote to memory of 3472	1500	rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\ae9e2ce4cf9b092a5bbfd1d5a609166e.exe
"C:\Users\Admin\AppData\Local\Temp\ae9e2ce4cf9b092a5bbfd1d5a609166e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1020
- C:\Users\Admin\AppData\Local\Temp\ae9e2ce4cf9b092a5bbfd1d5a609166e.exe
  "C:\Users\Admin\AppData\Local\Temp\ae9e2ce4cf9b092a5bbfd1d5a609166e.exe" -h
  2⤵
  PID:4916

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
  2⤵
  - Loads dropped DLL
  PID:3472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 600
    3⤵
    - Program crash
    PID:2280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3472 -ip 3472
1⤵
PID:3924

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

db.dat

Path C:\Users\Admin\AppData\Local\Temp\db.dat
Size 557KB
SHA256 6c05e113ed295140f979f4a8864eac92e119e013e74e6ed3d849a66217e34c6a
MD5 720ec3d97f3cd9e1dc34b7ad51451892
SHA1 8c417926a14a0cd2d268d088658022f49e3dda4b
SHA512 0d681247d1f7f5932779da58d59de2dd0e01e904acc8702bea93676f029b2dd0745b961f833d49ef4a6af712a3a3ba51364533741cd605d39442fe2993279dee
SSDEEP 12288:tRpkOAz5McByQtal7amGE78Ly/rD46NhGU+h89:rqyNlO6D46NlyA
MD5 SHA1 SHA512 SSDEEP

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db.dll

Path C:\Users\Admin\AppData\Local\Temp\db.dll
Size 60KB
SHA256 73314490c80e5eb09f586e12c1f035c44f11aeaa41d2f4b08aca476132578930
MD5 4d11bd6f3172584b3fda0e9efcaf0ddb
SHA1 0581c7f087f6538a1b6d4f05d928c1df24236944
SHA512 6a023496e7ee03c2ff8e3ba445c7d7d5bfe6a1e1e1bae5c17dcf41e78ede84a166966579bf8cc7be7450d2516f869713907775e863670b10eb60c092492d2d04
SSDEEP 768:WDKKrolwgA7W2cz1Pii4A1yZHtVtQg0eBU:KKPi2Fii4TrtQg0e
MD5 SHA1 SHA512 SSDEEP

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db.dll

Path C:\Users\Admin\AppData\Local\Temp\db.dll
Size 60KB
SHA256 73314490c80e5eb09f586e12c1f035c44f11aeaa41d2f4b08aca476132578930
MD5 4d11bd6f3172584b3fda0e9efcaf0ddb
SHA1 0581c7f087f6538a1b6d4f05d928c1df24236944
SHA512 6a023496e7ee03c2ff8e3ba445c7d7d5bfe6a1e1e1bae5c17dcf41e78ede84a166966579bf8cc7be7450d2516f869713907775e863670b10eb60c092492d2d04
SSDEEP 768:WDKKrolwgA7W2cz1Pii4A1yZHtVtQg0eBU:KKPi2Fii4TrtQg0e
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads