67df53e50fef54326d9a6a7ad5381e3f18aad855e6fb69fbeaed731320d7c58d

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 13:58

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General

Target

ac8zt2/msdrvctrl.exe
Size

32KB
MD5

14f19d9a7e8b0deff5f0c55e22c5c8dc
SHA1

a2bc1ea2ca8faac7642afe85cc3dfd5bd6a86089
SHA256

22b3255c710f79056dd3fca6775a9e069f855bda5d51d7edd823637e433f72a9
SHA512

4622c6fdc511988b03c76b487f8e497b8044c2345044450fb5665c49a843c3806290ee4e0d1e974169502384e411f27258ad107a618ec28fbae234b8c470f1f8
SSDEEP

768:iMQBteUlcwTcENOvH7x2cHQ3mFz4yNtAnFJjTpshXnhN3CvRN:NQD3lcecEkvgDm5tgjmhN3A

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msdrvctrl.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\msdrvctrl = "C:\\Windows\\msdrvctrl.exe"	msdrvctrl.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral13/memory/2348-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral13/memory/2348-2-0x0000000000400000-0x0000000000417000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdrvctrl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30
PID 2348 wrote to memory of 300	2348	msdrvctrl.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	msdrvctrl.exe

C:\Users\Admin\AppData\Local\Temp\ac8zt2\msdrvctrl.exe
"C:\Users\Admin\AppData\Local\Temp\ac8zt2\msdrvctrl.exe"
1⤵
- Adds policy Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2348
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\system32\regsvr32.exe /s "C:\Windows\iedrives.dll"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:300

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2348-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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memory/2348-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads