a01feeb43fac99c6270a8f3b0f3db9de1de8ccaf8edb8e207ed547842fd3cf8d

Analysis

max time kernel
66s
max time network
15s
platform
windows7_x64
resource
win7v20210408
submitted
28-07-2021 08:04

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General

Target

POE6709000.JS.js
Size

2KB
MD5

38aed88adfeff1ade7eb881e7974a003
SHA1

e2957656134f6fc70a02beac4c28c4865377c9e7
SHA256

a01feeb43fac99c6270a8f3b0f3db9de1de8ccaf8edb8e207ed547842fd3cf8d
SHA512

65de2bf879e3d801333194a794bbaa9209ea1d76bc96115328688c91c1acede9e352514b88b72171f702686f799c82e2be8e9e83e0da05121690837cf60db03e

Score

10^/10

evasion suricata

Malware Config

Signatures

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/772-66-0x0000000000300000-0x000000000030B000-memory.dmp	CustAttr

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

6 1612 wscript.exe
Downloads MZ/PE file
Executes dropped EXE 6 IoCs

Processes:

Downloader.exeDownloader.exeDownloader.exeDownloader.exeDownloader.exeDownloader.exe

pid process

772 Downloader.exe
488 Downloader.exe
348 Downloader.exe
300 Downloader.exe
984 Downloader.exe
1604 Downloader.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

flow	pid	process
6	1612	wscript.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Downloader.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Downloader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Downloader.exe

Loads dropped DLL 5 IoCs

Processes:

Downloader.exe

pid process

772 Downloader.exe
772 Downloader.exe
772 Downloader.exe
772 Downloader.exe
772 Downloader.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Downloader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Downloader.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Downloader.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

Downloader.exe

pid	process
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe
772	Downloader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Downloader.exe

description pid process

Token: SeDebugPrivilege 772 Downloader.exe

description	pid	process
Token: SeDebugPrivilege	772	Downloader.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

wscript.exeDownloader.exe

description	pid	process	target process
PID 1612 wrote to memory of 772	1612	wscript.exe	Downloader.exe
PID 1612 wrote to memory of 772	1612	wscript.exe	Downloader.exe
PID 1612 wrote to memory of 772	1612	wscript.exe	Downloader.exe
PID 1612 wrote to memory of 772	1612	wscript.exe	Downloader.exe
PID 772 wrote to memory of 488	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 488	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 488	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 488	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 348	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 348	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 348	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 348	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 300	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 300	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 300	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 300	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 984	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 984	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 984	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 984	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 1604	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 1604	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 1604	772	Downloader.exe	Downloader.exe
PID 772 wrote to memory of 1604	772	Downloader.exe	Downloader.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\POE6709000.JS.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1612

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:772

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
3⤵
- Executes dropped EXE
PID:488

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
3⤵
- Executes dropped EXE
PID:348

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
3⤵
- Executes dropped EXE
PID:300

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
3⤵
- Executes dropped EXE
PID:984

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
"C:\Users\Admin\AppData\Local\Temp\Downloader.exe"
3⤵
- Executes dropped EXE
PID:1604

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
C:\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
\Users\Admin\AppData\Local\Temp\Downloader.exe
MD5
4f9f0d44eac8c320a004a7a7e3aa8f3f

SHA1
07efcd541a452923168048eea5a68752aca9c705

SHA256
a8794fda49fbd75f6b6648e34f4520e92109b6fd28d426052af3b08444528888

SHA512
4829c9b674dfd095adc52ee4b742985ff801277d844306e858de3aac72e56a2a383bf0acfe5f4aee18f85b058e894b97b338432c5b45344fa963d4f97e888127

Download Submit
memory/772-68-0x0000000000530000-0x000000000054D000-memory.dmp

Filesize
116KB

Download
memory/772-67-0x0000000005210000-0x0000000005271000-memory.dmp

Filesize
388KB

Download
memory/772-60-0x0000000000000000-mapping.dmp

Download
memory/772-66-0x0000000000300000-0x000000000030B000-memory.dmp

Filesize
44KB

Download
memory/772-65-0x0000000004D90000-0x0000000004D91000-memory.dmp

Filesize
4KB

Download
memory/772-63-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download