db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22

General

Target

db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe
Size

209KB
MD5

0c8cdae0e49a91a4febfcce34f5e68b6
SHA1

54b73015316b1f223c9df4ec992b1ec9e0fee939
SHA256

db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22
SHA512

61f40e535086cebf600cd7e45b5ada8936a75734677a3af7f2bd60697f64076870793dfef2127e1a08a68b92d7609eb9ef0f8320f462cc59a15ca707d8cb585b
SSDEEP

3072:9mEOmgAseVHLj+77azdRDMigGOEcI2TwrC/crthxWepiHpYOk:9nAAseVHm7aznJJ/2eIJ

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1848	dryamdusip.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe

Loads dropped DLL 1 IoCs

pid	Process
1848	dryamdusip.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
840	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1004	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1848	dryamdusip.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	taskkill.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1848	dryamdusip.exe
1848	dryamdusip.exe
1848	dryamdusip.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1848	dryamdusip.exe
1848	dryamdusip.exe
1848	dryamdusip.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 3816	1716	db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe	83
PID 1716 wrote to memory of 3816	1716	db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe	83
PID 1716 wrote to memory of 3816	1716	db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe	83
PID 3816 wrote to memory of 840	3816	cmd.exe	85
PID 3816 wrote to memory of 840	3816	cmd.exe	85
PID 3816 wrote to memory of 840	3816	cmd.exe	85
PID 3816 wrote to memory of 1004	3816	cmd.exe	86
PID 3816 wrote to memory of 1004	3816	cmd.exe	86
PID 3816 wrote to memory of 1004	3816	cmd.exe	86
PID 3816 wrote to memory of 1848	3816	cmd.exe	89
PID 3816 wrote to memory of 1848	3816	cmd.exe	89
PID 3816 wrote to memory of 1848	3816	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe
"C:\Users\Admin\AppData\Local\Temp\db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 1716 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22.exe" & start C:\Users\Admin\AppData\Local\DRYAMD~1.EXE -f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3816
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 1716
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:840
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:1004
- - C:\Users\Admin\AppData\Local\dryamdusip.exe
    C:\Users\Admin\AppData\Local\DRYAMD~1.EXE -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\dryamdusip.exe

Filesize
209KB

MD5
0c8cdae0e49a91a4febfcce34f5e68b6

SHA1
54b73015316b1f223c9df4ec992b1ec9e0fee939

SHA256
db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22

SHA512
61f40e535086cebf600cd7e45b5ada8936a75734677a3af7f2bd60697f64076870793dfef2127e1a08a68b92d7609eb9ef0f8320f462cc59a15ca707d8cb585b

Download Submit
C:\Users\Admin\AppData\Local\dryamdusip.exe

Filesize
209KB

MD5
0c8cdae0e49a91a4febfcce34f5e68b6

SHA1
54b73015316b1f223c9df4ec992b1ec9e0fee939

SHA256
db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22

SHA512
61f40e535086cebf600cd7e45b5ada8936a75734677a3af7f2bd60697f64076870793dfef2127e1a08a68b92d7609eb9ef0f8320f462cc59a15ca707d8cb585b

Download Submit
C:\Users\Admin\AppData\Local\dryamdusip.exe

Filesize
209KB

MD5
0c8cdae0e49a91a4febfcce34f5e68b6

SHA1
54b73015316b1f223c9df4ec992b1ec9e0fee939

SHA256
db91984c22f9e6bab9a8637f4b9231155b8dbef1024259da0de03b5274c87a22

SHA512
61f40e535086cebf600cd7e45b5ada8936a75734677a3af7f2bd60697f64076870793dfef2127e1a08a68b92d7609eb9ef0f8320f462cc59a15ca707d8cb585b

Download Submit
memory/1716-132-0x0000000001000000-0x00000000010D7000-memory.dmp

Filesize
860KB

Download
memory/1716-134-0x0000000001000000-0x00000000010D7000-memory.dmp

Filesize
860KB

Download
memory/1848-141-0x0000000001000000-0x00000000010D7000-memory.dmp

Filesize
860KB

Download
memory/1848-142-0x0000000000DB0000-0x0000000000E87000-memory.dmp

Filesize
860KB

Download
memory/1848-143-0x0000000001000000-0x00000000010D7000-memory.dmp

Filesize
860KB

Download
memory/1848-144-0x0000000000DB0000-0x0000000000E87000-memory.dmp

Filesize
860KB

Download

Analysis

Sharing