Overview
overview
10Static
static
BHC-PR/BHC...an.exe
windows7_x64
10BHC-PR/BHC...an.exe
windows10_x64
10BHC-PR/Bri...on.exe
windows7_x64
10BHC-PR/Bri...on.exe
windows10_x64
10BHC-PR/Bri...20.exe
windows7_x64
10BHC-PR/Bri...20.exe
windows10_x64
10BHC-PR/Bri...ts.exe
windows7_x64
10BHC-PR/Bri...ts.exe
windows10_x64
10BHC-PR/Bri...ls.exe
windows7_x64
10BHC-PR/Bri...ls.exe
windows10_x64
10BHC-PR/Bri...20.exe
windows7_x64
10BHC-PR/Bri...20.exe
windows10_x64
10Analysis
-
max time kernel
132s -
max time network
152s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
21-01-2022 23:00
Static task
static1
Behavioral task
behavioral1
Sample
BHC-PR/BHC PR - British Airways Restarts Flights to Pakistan.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
BHC-PR/BHC PR - British Airways Restarts Flights to Pakistan.exe
Resource
win10-en-20211208
Behavioral task
behavioral3
Sample
BHC-PR/British High Commission Peter Emmerson.exe
Resource
win7-en-20211208
Behavioral task
behavioral4
Sample
BHC-PR/British High Commission Peter Emmerson.exe
Resource
win10-en-20211208
Behavioral task
behavioral5
Sample
BHC-PR/British High Commission Press Release - GREAT Debate Islamabad 2020.exe
Resource
win7-en-20211208
Behavioral task
behavioral6
Sample
BHC-PR/British High Commission Press Release - GREAT Debate Islamabad 2020.exe
Resource
win10-en-20211208
Behavioral task
behavioral7
Sample
BHC-PR/British High Commission Rhinnon Mills receipts.exe
Resource
win7-en-20211208
Behavioral task
behavioral8
Sample
BHC-PR/British High Commission Rhinnon Mills receipts.exe
Resource
win10-en-20211208
Behavioral task
behavioral9
Sample
BHC-PR/British High Commission Rhinnon Mills.exe
Resource
win7-en-20211208
Behavioral task
behavioral10
Sample
BHC-PR/British High Commission Rhinnon Mills.exe
Resource
win10-en-20211208
Behavioral task
behavioral11
Sample
BHC-PR/British High Commission Urdu Press Release - GREAT Debate Islamabad 2020.exe
Resource
win7-en-20211208
Behavioral task
behavioral12
Sample
BHC-PR/British High Commission Urdu Press Release - GREAT Debate Islamabad 2020.exe
Resource
win10-en-20211208
General
-
Target
BHC-PR/British High Commission Press Release - GREAT Debate Islamabad 2020.exe
-
Size
267KB
-
MD5
f6dab5861b5907b39004712c58bbfb04
-
SHA1
d5e8b77806150ba31efd82e05db7e678a3f52874
-
SHA256
567b82c892f10a5cc6d0286c5777e7462cec7182eba81db7dd7de53d1e8d3274
-
SHA512
b2dfc9ee64521d25a19e2867cf3446e06bde9c65988ff3e2924d8a8eee76f4553ba0cdc9e953f848d3c6a8e96d0d57874cb0df6fc94dc2402425d4634109e16c
Malware Config
Signatures
-
CrimsonRAT Main Payload 2 IoCs
Processes:
resource yara_rule C:\ProgramData\Hanthavra\rnthiavesa.exe family_crimsonrat C:\ProgramData\Hanthavra\rnthiavesa.exe family_crimsonrat -
CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
-
Executes dropped EXE 1 IoCs
Processes:
rnthiavesa.exepid process 1316 rnthiavesa.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE -
Modifies registry class 1 IoCs
Processes:
British High Commission Press Release - GREAT Debate Islamabad 2020.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000_Classes\Local Settings British High Commission Press Release - GREAT Debate Islamabad 2020.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 1460 WINWORD.EXE 1460 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
WINWORD.EXEpid process 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE 1460 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
British High Commission Press Release - GREAT Debate Islamabad 2020.exedescription pid process target process PID 2620 wrote to memory of 1460 2620 British High Commission Press Release - GREAT Debate Islamabad 2020.exe WINWORD.EXE PID 2620 wrote to memory of 1460 2620 British High Commission Press Release - GREAT Debate Islamabad 2020.exe WINWORD.EXE PID 2620 wrote to memory of 1316 2620 British High Commission Press Release - GREAT Debate Islamabad 2020.exe rnthiavesa.exe PID 2620 wrote to memory of 1316 2620 British High Commission Press Release - GREAT Debate Islamabad 2020.exe rnthiavesa.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\BHC-PR\British High Commission Press Release - GREAT Debate Islamabad 2020.exe"C:\Users\Admin\AppData\Local\Temp\BHC-PR\British High Commission Press Release - GREAT Debate Islamabad 2020.exe"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2620 -
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Documents\British High Commission Press Release - GREAT Debate Islamabad 2020-03-.docx" /o ""2⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1460 -
C:\ProgramData\Hanthavra\rnthiavesa.exe"C:\ProgramData\Hanthavra\rnthiavesa.exe"2⤵
- Executes dropped EXE
PID:1316
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
93e588df26c62a47d3564e58ec988368
SHA1fcd11555531f636245d4c03f151dceb62ba72f6e
SHA2566cecd33e717c607ce578942e35c020d7571a7db67ce9270f9dcff30018a666cc
SHA5120f1f527eed767036dd6323fb5bfbf3e83fc7c2ef842c6d297742d536f8b1ae5b0b54a8ef83fe26f42916656feb0752badb6a39e63067a7dc6fe3e0797738a8ef
-
MD5
93e588df26c62a47d3564e58ec988368
SHA1fcd11555531f636245d4c03f151dceb62ba72f6e
SHA2566cecd33e717c607ce578942e35c020d7571a7db67ce9270f9dcff30018a666cc
SHA5120f1f527eed767036dd6323fb5bfbf3e83fc7c2ef842c6d297742d536f8b1ae5b0b54a8ef83fe26f42916656feb0752badb6a39e63067a7dc6fe3e0797738a8ef
-
C:\Users\Admin\Documents\British High Commission Press Release - GREAT Debate Islamabad 2020-03-.docx
MD5807aabe62a6ad47fe7eb5a25cdba1389
SHA1a15f84ddf02e78767a0b04309ce218d25ac6bf54
SHA25628952c0d58009a01c8f0b68b88f9a0945cfc8d7b2a5bd7a428dad0eab9fb97c8
SHA5124c674d0eddf5ceda71fddfa529723bc6aed0b4113e36d5864ca0e21bd45ce9e8f2de0ada9421a64efbbf452d44012a326cb374c1734928eb1a3d100d919488b3