acd716621d9763abae3962b37986a614333398afc844446312560c1a03bc87ec

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 12:05

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General

Target

02-VCDSLoader English.exe
Size

3.9MB
MD5

8868ed4945567163fa91333d6219f190
SHA1

0f29021a815b9db85e5fb8969c239abe8dabf0df
SHA256

acd716621d9763abae3962b37986a614333398afc844446312560c1a03bc87ec
SHA512

df838d5d07ded9bd2911f08d0bfbf079c5ebfa3da30c2fcb9cf59d4c41a7fbad4ddc01ac69fbfc01a30b97fbc1be87847a411c4c57398ec5604c4654a643bee8
SSDEEP

98304:5r06FOznLo0+Dd6uxcZGxPYkJe4ZhK/HPlkBuUruHOHDNosky9kc:Z3F6n80W6uGZmTJw/H90uVoDNrkyec

Score

8^/10

discovery upx

Malware Config

Signatures

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	irsetup.exe
File created	C:\Windows\System32\drivers\etc\hosts	irsetup.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	02-VCDSLoader English.exe

Executes dropped EXE 1 IoCs

pid	Process
1860	irsetup.exe

Loads dropped DLL 1 IoCs

pid	Process
1860	irsetup.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000800000002341f-5.dat	upx
behavioral2/memory/1860-14-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral2/memory/1860-22-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral2/memory/1860-52-0x0000000000400000-0x00000000007CB000-memory.dmp	upx

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	02-VCDSLoader English.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	irsetup.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1860	irsetup.exe
1860	irsetup.exe
1860	irsetup.exe
1860	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 1860	4920	02-VCDSLoader English.exe	82
PID 4920 wrote to memory of 1860	4920	02-VCDSLoader English.exe	82
PID 4920 wrote to memory of 1860	4920	02-VCDSLoader English.exe	82

C:\Users\Admin\AppData\Local\Temp\02-VCDSLoader English.exe
"C:\Users\Admin\AppData\Local\Temp\02-VCDSLoader English.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
  "C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:1770866 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\02-VCDSLoader English.exe" "__IRCT:0" "__IRTSS:0" "__IRSID:S-1-5-21-2412658365-3084825385-3340777666-1000"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Ross-Tech\VCDS\VCDSLoader.exe

Filesize
2.6MB

MD5
a1e2879a10d20f2b72cb94204a2c1e9f

SHA1
da46a17c6cac86e34b0134e32ef0074b538e6a0d

SHA256
8f661f16c87169fefc4dc7e612521ad8498c016a0153c51dae67af0b984adaac

SHA512
1bcd89994938b2be245e48489f60eac3f1f4a16a2fda1599005e55831f9e982c5107952fcf54ff5b556f2bc51ef2f06c4d674bb50deeff34fe222bdaa145e16b

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\IRIMG2.BMP

Filesize
6KB

MD5
223afa52e2b3529231564e5dbb4d25a7

SHA1
e5ad7214213c332fcf0fea731932e800003cc4cd

SHA256
6c5ce89bcd8536b2e0c4281b686c91140d911f333caaec30997c84676078ca73

SHA512
8139b2f67fc271da6df7c27f3d51a007d853e5cc158ceb0c6582fe8990213a2c6c4d6b658d4659a11667c97607286bb4cbe0016749a2d69686bbd911b5d99af8

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe

Filesize
1.3MB

MD5
dec931e86140139380ea0df57cd132b6

SHA1
b717fd548382064189c16cb94dda28b1967a5712

SHA256
5ffd4b20dccfb84c8890abdb780184a7651e760aefba4ab0c6fba5b2a81f97d9

SHA512
14d594e88c4a1f0ec8bc1b4fe2d66e26358f907b1106c047ada35d500ca9e608f1ce5a57599453cf10f11f4d9f1948ced9056ce8bd944b16eca7e9b83e8b27af

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll

Filesize
318KB

MD5
b5fc476c1bf08d5161346cc7dd4cb0ba

SHA1
280fac9cf711d93c95f6b80ac97d89cf5853c096

SHA256
12cb9b8f59c00ef40ea8f28bfc59a29f12dc28332bf44b1a5d8d6a8823365650

SHA512
17fa97f399287b941e958d2d42fe6adb62700b01d9dbe0c824604e8e06d903b330f9d7d8ffb109bfb7f6742f46e7e9cedad6981f0d94d629b8402d0a0174f697

Download Submit
memory/1860-14-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/1860-22-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/1860-52-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download