f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131

General

Target

f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
Size

8.0MB
MD5

0cc09792c4e0ac345a21cb89238251ff
SHA1

76bbadad2c768d56288745f2baf32345f49dc630
SHA256

f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131
SHA512

cdb3bdabb10be88655eee9ec51f97db513adb6f7f48da6cb9d48182f07dd31585db138190ba12560118e871edbad0e0da1d7317118993e8175b140ce6018c93b
SSDEEP

196608:zrpWV8lOtCU3sOAWQnTrpUC5ON+pkb/56AhDk5q:vCmOkuBETrSl0SK5q

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe

Executes dropped EXE 1 IoCs

pid	Process
4820	ntoskrnl.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
4820	ntoskrnl.exe
4820	ntoskrnl.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	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ntoskrnl.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
4820	ntoskrnl.exe
4820	ntoskrnl.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
4820	ntoskrnl.exe
4820	ntoskrnl.exe
4820	ntoskrnl.exe
4820	ntoskrnl.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 4820	4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe	87
PID 4424 wrote to memory of 4820	4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe	87
PID 4424 wrote to memory of 4820	4424	f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe	87

C:\Users\Admin\AppData\Local\Temp\f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe
"C:\Users\Admin\AppData\Local\Temp\f3cfbadd4b07a92e7116e199dd9f6dd03adf85f3cc38290cccd5880db9cd0131.exe"
1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Users\Admin\AppData\Local\Temp\ntoskrnl.exe
  "C:\Users\Admin\AppData\Local\Temp\ntoskrnl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ntoskrnl.exe

Filesize
8.0MB

MD5
e7a54485b45276ef0c0be9df3abed3e2

SHA1
92bae0c77797a4073714751c727a0a7555df1e04

SHA256
e35fda43ab7c8489fc167f5b559be00d7a871ed1b922e871eb603b4f34054d8e

SHA512
a0126ce5f12de785e063049704f698b0fa9cbf0f00951d1abdc6cdbb19dcd5027bceb02a722e14fdb4aaff2703c17ecc8ea50f0f01266cd95d199eb95d11e0b0

Download Submit
memory/4424-23-0x000000000041D000-0x00000000008AE000-memory.dmp

Filesize
4.6MB

Download
memory/4424-6-0x0000000003030000-0x0000000003031000-memory.dmp

Filesize
4KB

Download
memory/4424-5-0x0000000003020000-0x0000000003021000-memory.dmp

Filesize
4KB

Download
memory/4424-4-0x0000000003010000-0x0000000003011000-memory.dmp

Filesize
4KB

Download
memory/4424-8-0x0000000000400000-0x00000000010B8000-memory.dmp

Filesize
12.7MB

Download
memory/4424-3-0x0000000001830000-0x0000000001831000-memory.dmp

Filesize
4KB

Download
memory/4424-2-0x0000000001820000-0x0000000001821000-memory.dmp

Filesize
4KB

Download
memory/4424-1-0x0000000001810000-0x0000000001811000-memory.dmp

Filesize
4KB

Download
memory/4424-0-0x000000000041D000-0x00000000008AE000-memory.dmp

Filesize
4.6MB

Download
memory/4424-7-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/4820-32-0x0000000000400000-0x00000000010B8000-memory.dmp

Filesize
12.7MB

Download
memory/4820-33-0x0000000000400000-0x00000000010B8000-memory.dmp

Filesize
12.7MB

Download
memory/4820-30-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

Filesize
4KB

Download
memory/4820-29-0x0000000002EE0000-0x0000000002EE1000-memory.dmp

Filesize
4KB

Download
memory/4820-28-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

Filesize
4KB

Download
memory/4820-27-0x0000000001510000-0x0000000001511000-memory.dmp

Filesize
4KB

Download
memory/4820-26-0x00000000014E0000-0x00000000014E1000-memory.dmp

Filesize
4KB

Download
memory/4820-25-0x00000000014D0000-0x00000000014D1000-memory.dmp

Filesize
4KB

Download
memory/4820-24-0x00000000014C0000-0x00000000014C1000-memory.dmp

Filesize
4KB

Download
memory/4820-34-0x0000000000400000-0x00000000010B8000-memory.dmp

Filesize
12.7MB

Download

Analysis

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