4a9d815f284adda187982e2b24da2beaad860739bc4b4cb1cf26408e7c221dd6

Analysis

max time kernel
1794s
max time network
1800s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-08-2024 02:37

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General

Target

$PLUGINSDIR/shell_downloader.dll
Size

2.3MB
MD5

c052c0a2ed833d924b7799625413ac1c
SHA1

bdd08a29f4de283ba0eb3cda4abc26f6e85d4d5e
SHA256

098972cf9ddc9d574130e025a252a99b278de9cc0ae700acfb8c935c24eb1172
SHA512

89e67c29d5d8a401a70a5b572844f24bfde82d5d4259ecc5e6f12be0ddb434995a2e985914fc421973998e3fdc48b133e269e8bb1da513ec66199f01060162f1
SSDEEP

49152:ed86lJRUahxtsyZj1+z9DApoEV+i4u2VFZhDy+:ed86WsCA1+BDwdV94u2VFi

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1840 2380 WerFault.exe rundll32.exe
System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
1840	2380	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 408 wrote to memory of 2380	408	rundll32.exe	rundll32.exe
PID 408 wrote to memory of 2380	408	rundll32.exe	rundll32.exe
PID 408 wrote to memory of 2380	408	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\shell_downloader.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:408

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\shell_downloader.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 700
3⤵
- Program crash
PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2380 -ip 2380
1⤵
PID:3976

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4188,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:1580

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3948,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=5088 /prefetch:8
1⤵
PID:4632

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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