ce5353f0fff1f1e50d5456b1f716fa0796d9dbb0565591fecee47da523fc65f4

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 14:08

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General

Target

0f4c83a80e28fda7257eb5d6357b9890N.exe
Size

280KB
MD5

0f4c83a80e28fda7257eb5d6357b9890
SHA1

5ac8b3d61d216ee5869d9a0f5312122b66100cee
SHA256

ce5353f0fff1f1e50d5456b1f716fa0796d9dbb0565591fecee47da523fc65f4
SHA512

0f9e14d23e27ba991eb1f5b4176d8788c555888e07e71f39fc07f0590602e2adc6ecb9bd88c088bed63b246304760ca197220421018f4beab8b468e4b2217b1b
SSDEEP

6144:uTz+WrPFZvTXb4RyW42vFlOloh2E+7pYUozDK:uTBPFV0RyWl3h2E+7pl

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2704	dwmsys.exe
2756	dwmsys.exe

Loads dropped DLL 4 IoCs

pid	Process
2528	0f4c83a80e28fda7257eb5d6357b9890N.exe
2528	0f4c83a80e28fda7257eb5d6357b9890N.exe
2528	0f4c83a80e28fda7257eb5d6357b9890N.exe
2704	dwmsys.exe

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

System Information Discovery
T1082

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	dwmsys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f4c83a80e28fda7257eb5d6357b9890N.exe

Modifies registry class 28 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\runas	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\open	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\runas\command	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\runas\command	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\open\command	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\ = "Application"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\ = "systemui"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\DefaultIcon	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\DefaultIcon	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\open\command	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\runas\command\ = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\Content-Type = "application/x-msdownload"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\DefaultIcon\ = "%1"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\Content-Type = "application/x-msdownload"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\open	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\open\command\IsolatedCommand = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SView\\dwmsys.exe\" /START \"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\runas	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\DefaultIcon\ = "%1"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\runas\command\IsolatedCommand = "\"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\systemui\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SView\\dwmsys.exe\" /START \"%1\" %*"	0f4c83a80e28fda7257eb5d6357b9890N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2704	dwmsys.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2704	2528	0f4c83a80e28fda7257eb5d6357b9890N.exe	30
PID 2528 wrote to memory of 2704	2528	0f4c83a80e28fda7257eb5d6357b9890N.exe	30
PID 2528 wrote to memory of 2704	2528	0f4c83a80e28fda7257eb5d6357b9890N.exe	30
PID 2528 wrote to memory of 2704	2528	0f4c83a80e28fda7257eb5d6357b9890N.exe	30
PID 2704 wrote to memory of 2756	2704	dwmsys.exe	31
PID 2704 wrote to memory of 2756	2704	dwmsys.exe	31
PID 2704 wrote to memory of 2756	2704	dwmsys.exe	31
PID 2704 wrote to memory of 2756	2704	dwmsys.exe	31

C:\Users\Admin\AppData\Local\Temp\0f4c83a80e28fda7257eb5d6357b9890N.exe
"C:\Users\Admin\AppData\Local\Temp\0f4c83a80e28fda7257eb5d6357b9890N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe"
    3⤵
    - Executes dropped EXE
    PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\SView\dwmsys.exe

Filesize
280KB

MD5
e5caba04888dc731efc34f6c5133fd60

SHA1
91de4f70060297f5a8d2436661832dd602939703

SHA256
02b2bdaeb8d9df3ff72ebac768ab1609ac2c324d46fb58442429c218e31b3899

SHA512
9df7a96db35e838392bd910bc3b10ef47a0c44a3a9c3b60d79eb3e903392abce6748a0fe384499756efa569a7e7c094fd60e32604f1213af7db84aa2a0e58b17

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