1c63ab6f3e71ef9aa669daf3ecd57b69570ea5d14e24e8dbe2e296133a0c9690

General

Target

1c63ab6f3e71ef9aa669daf3ecd57b69570ea5d14e24e8dbe2e296133a0c9690.doc
Size

191KB
MD5

b09a0d6236e5c0455b379e6678aa0392
SHA1

6439a44d4f7c5d92879c637767db6938b63c096f
SHA256

1c63ab6f3e71ef9aa669daf3ecd57b69570ea5d14e24e8dbe2e296133a0c9690
SHA512

e171007f4d203107dceb7e73ee1b90f8ce9e89cf0b5c0e8c98d182d8b684395c2d2ff0506230d5cb9b07946d29ddc9a38cfa9a1c0bee9b97a73194e56134f809
SSDEEP

3072:3hT6bftBVUtfBhOSCw3GMPQY98JfZmKP7uCsFMakqYTfcIn+2o7JaOCisA:3hT6bftnUtiSCCd98JzP7HsqakRTfcIM

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

http://www.isolectra.com.sg/tmp/rk2n1.exe

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	1704	1744	cmd.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

67 4024 powershell.exe

flow	pid	process
67	4024	powershell.exe

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

Processes:

cscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	cscript.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4736 PING.EXE
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1744 WINWORD.EXE
1744 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4024 powershell.exe
4024 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4024 powershell.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE
1744 WINWORD.EXE

pid	process
4736	PING.EXE

pid	process
1744	WINWORD.EXE
1744	WINWORD.EXE

pid	process
4024	powershell.exe
4024	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4024	powershell.exe

pid	process
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE
1744	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

WINWORD.EXEcmd.execscript.exepowershell.exe

description	pid	process	target process
PID 1744 wrote to memory of 1704	1744	WINWORD.EXE	cmd.exe
PID 1744 wrote to memory of 1704	1744	WINWORD.EXE	cmd.exe
PID 1704 wrote to memory of 4736	1704	cmd.exe	PING.EXE
PID 1704 wrote to memory of 4736	1704	cmd.exe	PING.EXE
PID 1704 wrote to memory of 4040	1704	cmd.exe	chcp.com
PID 1704 wrote to memory of 4040	1704	cmd.exe	chcp.com
PID 1704 wrote to memory of 3232	1704	cmd.exe	cscript.exe
PID 1704 wrote to memory of 3232	1704	cmd.exe	cscript.exe
PID 3232 wrote to memory of 4024	3232	cscript.exe	powershell.exe
PID 3232 wrote to memory of 4024	3232	cscript.exe	powershell.exe
PID 4024 wrote to memory of 1116	4024	powershell.exe	cmd.exe
PID 4024 wrote to memory of 1116	4024	powershell.exe	cmd.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\1c63ab6f3e71ef9aa669daf3ecd57b69570ea5d14e24e8dbe2e296133a0c9690.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Users\Admin\AppData\Local\Temp\adobeacd-update.bat
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\system32\PING.EXE
ping 1.1.2.2 -n 2
3⤵
- Runs ping.exe
PID:4736

C:\Windows\system32\chcp.com
chcp 1251
3⤵
PID:4040

C:\Windows\system32\cscript.exe
cscript.exe "c:\Users\Admin\AppData\Local\Temp\adobeacd-update.vbs"
3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3232

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy bypass -noprofile -file C:\Users\Admin\AppData\Local\Temp\adobeacd-update.ps1
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4024

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c c:\Users\Admin\AppData\Local\Temp\444.exe
5⤵
PID:1116

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\adobeacd-update.ps1
Filesize
1KB

MD5
a1b6811698ef13dc4e07ceb50c171cc9

SHA1
feed4a281f100c52acd1b4d6315add0c74dfb184

SHA256
8e4852a8f37da4e59321f765ad9abf0deee1feee63e3992009999b3afd01fff0

SHA512
bd07436da9d9dde851cb4c864fa5c38e93bcc5a96636381f1e44ed7a467f8c5dbd3f90351575e76d9caa097d11d05f5b696e14299f6bcc1e1ab8027b200c65ab

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\adobeacd-update.bat
Filesize
116B

MD5
4922a773060a96738c0309ff2266e9b0

SHA1
4b2effb130c3c0af0c0d17566ea40ddcba59a50e

SHA256
9d005399621525cef2397ca6ebaae4dd373781bec66d362712df8431cbdd1a03

SHA512
ce612df4b8516dbfd0f332b3419cc858d2ebc2211d56f75c917d4af551fa20b3936558b4e0036e57844c8865f8ed9b75c7fdf2d49c0cd2e9acf655516d9ddd04

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\adobeacd-update.vbs
Filesize
398B

MD5
f274f67c467b49b9d278ca3b4196b5d0

SHA1
8b80213e280bf2b40057a3b5269a540c387fd036

SHA256
79253c4e93bcc34576fa2f98a243241d00c7f38e91c1bebd4afc7ea41530fca1

SHA512
12daa3c73d16eaee755151dbc7907a4dcc8082e7896ba5333a62c4380a8e31c3b9a20b38d553abe14b491ad5ba107ccc74514548696f01daaae03b35f2b3d84b

Download Submit
memory/1116-151-0x0000000000000000-mapping.dmp

Download
memory/1704-139-0x0000000000000000-mapping.dmp

Download
memory/1744-135-0x00007FFD7C090000-0x00007FFD7C0A0000-memory.dmp

Filesize
64KB

Download
memory/1744-138-0x00007FFD79940000-0x00007FFD79950000-memory.dmp

Filesize
64KB

Download
memory/1744-137-0x00007FFD79940000-0x00007FFD79950000-memory.dmp

Filesize
64KB

Download
memory/1744-136-0x00007FFD7C090000-0x00007FFD7C0A0000-memory.dmp

Filesize
64KB

Download
memory/1744-132-0x00007FFD7C090000-0x00007FFD7C0A0000-memory.dmp

Filesize
64KB

Download
memory/1744-134-0x00007FFD7C090000-0x00007FFD7C0A0000-memory.dmp

Filesize
64KB

Download
memory/1744-133-0x00007FFD7C090000-0x00007FFD7C0A0000-memory.dmp

Filesize
64KB

Download
memory/3232-143-0x0000000000000000-mapping.dmp

Download
memory/4024-147-0x000002073D360000-0x000002073D3A4000-memory.dmp

Filesize
272KB

Download
memory/4024-146-0x000002073D0A0000-0x000002073D0C2000-memory.dmp

Filesize
136KB

Download
memory/4024-145-0x0000000000000000-mapping.dmp

Download
memory/4024-149-0x00007FFD8EDD0000-0x00007FFD8F891000-memory.dmp

Filesize
10.8MB

Download
memory/4024-150-0x00007FFD8EDD0000-0x00007FFD8F891000-memory.dmp

Filesize
10.8MB

Download
memory/4024-152-0x000002073D640000-0x000002073D6B6000-memory.dmp

Filesize
472KB

Download
memory/4040-142-0x0000000000000000-mapping.dmp

Download
memory/4736-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads