8e2fa428fa5e7092d117dadf10529a35f415a0b8fa27cd17607e23dd913ffcdc

Analysis

max time kernel
110s
max time network
18s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 13:49

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General

Target

request.exe
Size

307KB
MD5

ef8320eace6f753231666c61104bdd49
SHA1

0166aceb79a7d6b4a041fd7595fc1d75404a4419
SHA256

8e2fa428fa5e7092d117dadf10529a35f415a0b8fa27cd17607e23dd913ffcdc
SHA512

354676c97fe1666920a75fdbffecfd0ac802613572b9e7d0dbc9a1ac24b3c771ca8fa3c1f3375f0a1c90364a07fa22469d2e7eb822196c0a2a1893931b62efe9
SSDEEP

6144:hh9fH2l34HigA2/BDBaBL7cpnBZVCBQrfYQSlyItcJ2+QmmaeIBqk3biuFo480AL:s9jtaeIBqmu

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1236	msvcservice.exe
2764	msvcservice.exe
2192	msvcservice.exe

Loads dropped DLL 6 IoCs

pid	Process
1736	request.exe
1736	request.exe
2800	WerFault.exe
2800	WerFault.exe
2800	WerFault.exe
2800	WerFault.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\msvcservice = "C:\\Users\\Admin\\msvcservice.exe"	request.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\msvcservice = "C:\\Users\\Admin\\msvcservice.exe"	msvcservice.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\msvcservice = "C:\\Users\\Admin\\msvcservice.exe"	msvcservice.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\msvcservice = "C:\\Users\\Admin\\msvcservice.exe"	msvcservice.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	ip-api.io
6	ip-api.io
2	ip-api.io

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	1236	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 8 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	request.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msvcservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msvcservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msvcservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1596	schtasks.exe
1228	schtasks.exe
2812	schtasks.exe
828	schtasks.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1596	1736	request.exe	30
PID 1736 wrote to memory of 1596	1736	request.exe	30
PID 1736 wrote to memory of 1596	1736	request.exe	30
PID 1736 wrote to memory of 1596	1736	request.exe	30
PID 1736 wrote to memory of 1236	1736	request.exe	32
PID 1736 wrote to memory of 1236	1736	request.exe	32
PID 1736 wrote to memory of 1236	1736	request.exe	32
PID 1736 wrote to memory of 1236	1736	request.exe	32
PID 1236 wrote to memory of 1228	1236	msvcservice.exe	33
PID 1236 wrote to memory of 1228	1236	msvcservice.exe	33
PID 1236 wrote to memory of 1228	1236	msvcservice.exe	33
PID 1236 wrote to memory of 1228	1236	msvcservice.exe	33
PID 1236 wrote to memory of 2800	1236	msvcservice.exe	36
PID 1236 wrote to memory of 2800	1236	msvcservice.exe	36
PID 1236 wrote to memory of 2800	1236	msvcservice.exe	36
PID 1236 wrote to memory of 2800	1236	msvcservice.exe	36
PID 2104 wrote to memory of 2764	2104	taskeng.exe	38
PID 2104 wrote to memory of 2764	2104	taskeng.exe	38
PID 2104 wrote to memory of 2764	2104	taskeng.exe	38
PID 2104 wrote to memory of 2764	2104	taskeng.exe	38
PID 2764 wrote to memory of 2812	2764	msvcservice.exe	39
PID 2764 wrote to memory of 2812	2764	msvcservice.exe	39
PID 2764 wrote to memory of 2812	2764	msvcservice.exe	39
PID 2764 wrote to memory of 2812	2764	msvcservice.exe	39
PID 2104 wrote to memory of 2192	2104	taskeng.exe	41
PID 2104 wrote to memory of 2192	2104	taskeng.exe	41
PID 2104 wrote to memory of 2192	2104	taskeng.exe	41
PID 2104 wrote to memory of 2192	2104	taskeng.exe	41
PID 2192 wrote to memory of 828	2192	msvcservice.exe	42
PID 2192 wrote to memory of 828	2192	msvcservice.exe	42
PID 2192 wrote to memory of 828	2192	msvcservice.exe	42
PID 2192 wrote to memory of 828	2192	msvcservice.exe	42

C:\Users\Admin\AppData\Local\Temp\request.exe
"C:\Users\Admin\AppData\Local\Temp\request.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\schtasks.exe
  C:\Windows\System32\schtasks.exe /Create /SC MINUTE /MO 1 /TN msvcservice /TR "C:\Users\Admin\msvcservice.exe" /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1596
- C:\Users\Admin\msvcservice.exe
  "C:\Users\Admin\msvcservice.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1236
- - C:\Windows\SysWOW64\schtasks.exe
    C:\Windows\System32\schtasks.exe /Create /SC MINUTE /MO 1 /TN msvcservice /TR "C:\Users\Admin\msvcservice.exe" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1228
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 592
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2800

C:\Windows\system32\taskeng.exe
taskeng.exe {9388F08D-F9FF-48A2-AF85-523BC3E3814F} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\msvcservice.exe
  C:\Users\Admin\msvcservice.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\schtasks.exe
    C:\Windows\System32\schtasks.exe /Create /SC MINUTE /MO 1 /TN msvcservice /TR "C:\Users\Admin\msvcservice.exe" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2812
- C:\Users\Admin\msvcservice.exe
  C:\Users\Admin\msvcservice.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\schtasks.exe
    C:\Windows\System32\schtasks.exe /Create /SC MINUTE /MO 1 /TN msvcservice /TR "C:\Users\Admin\msvcservice.exe" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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\msvcservice.exe

Filesize
307KB

MD5
ef8320eace6f753231666c61104bdd49

SHA1
0166aceb79a7d6b4a041fd7595fc1d75404a4419

SHA256
8e2fa428fa5e7092d117dadf10529a35f415a0b8fa27cd17607e23dd913ffcdc

SHA512
354676c97fe1666920a75fdbffecfd0ac802613572b9e7d0dbc9a1ac24b3c771ca8fa3c1f3375f0a1c90364a07fa22469d2e7eb822196c0a2a1893931b62efe9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads