acd716621d9763abae3962b37986a614333398afc844446312560c1a03bc87ec

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

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

Executes dropped EXE 1 IoCs

pid	Process
2392	irsetup.exe

Loads dropped DLL 7 IoCs

pid	Process
2160	02-VCDSLoader English.exe
2160	02-VCDSLoader English.exe
2160	02-VCDSLoader English.exe
2160	02-VCDSLoader English.exe
2392	irsetup.exe
2392	irsetup.exe
2392	irsetup.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016276-3.dat	upx
behavioral1/memory/2160-24-0x0000000003570000-0x000000000393B000-memory.dmp	upx
behavioral1/memory/2392-26-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral1/memory/2392-29-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral1/memory/2392-37-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral1/memory/2392-63-0x0000000000400000-0x00000000007CB000-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 3 IoCs

pid	Process
2392	irsetup.exe
2392	irsetup.exe
2392	irsetup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31
PID 2160 wrote to memory of 2392	2160	02-VCDSLoader English.exe	31

C:\Users\Admin\AppData\Local\Temp\02-VCDSLoader English.exe
"C:\Users\Admin\AppData\Local\Temp\02-VCDSLoader English.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- 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-1-5-21-312935884-697965778-3955649944-1000"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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\lua5.1.dll

Filesize
318KB

MD5
b5fc476c1bf08d5161346cc7dd4cb0ba

SHA1
280fac9cf711d93c95f6b80ac97d89cf5853c096

SHA256
12cb9b8f59c00ef40ea8f28bfc59a29f12dc28332bf44b1a5d8d6a8823365650

SHA512
17fa97f399287b941e958d2d42fe6adb62700b01d9dbe0c824604e8e06d903b330f9d7d8ffb109bfb7f6742f46e7e9cedad6981f0d94d629b8402d0a0174f697

Download Submit
\Ross-Tech\VCDS\VCDSLoader.exe

Filesize
2.6MB

MD5
a1e2879a10d20f2b72cb94204a2c1e9f

SHA1
da46a17c6cac86e34b0134e32ef0074b538e6a0d

SHA256
8f661f16c87169fefc4dc7e612521ad8498c016a0153c51dae67af0b984adaac

SHA512
1bcd89994938b2be245e48489f60eac3f1f4a16a2fda1599005e55831f9e982c5107952fcf54ff5b556f2bc51ef2f06c4d674bb50deeff34fe222bdaa145e16b

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

Filesize
1.3MB

MD5
dec931e86140139380ea0df57cd132b6

SHA1
b717fd548382064189c16cb94dda28b1967a5712

SHA256
5ffd4b20dccfb84c8890abdb780184a7651e760aefba4ab0c6fba5b2a81f97d9

SHA512
14d594e88c4a1f0ec8bc1b4fe2d66e26358f907b1106c047ada35d500ca9e608f1ce5a57599453cf10f11f4d9f1948ced9056ce8bd944b16eca7e9b83e8b27af

Download Submit
memory/2160-25-0x0000000003570000-0x000000000393B000-memory.dmp

Filesize
3.8MB

Download
memory/2160-28-0x0000000003570000-0x000000000393B000-memory.dmp

Filesize
3.8MB

Download
memory/2160-27-0x0000000003570000-0x000000000393B000-memory.dmp

Filesize
3.8MB

Download
memory/2160-24-0x0000000003570000-0x000000000393B000-memory.dmp

Filesize
3.8MB

Download
memory/2392-26-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/2392-29-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/2392-37-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/2392-53-0x0000000003580000-0x0000000003590000-memory.dmp

Filesize
64KB

Download
memory/2392-59-0x0000000003580000-0x0000000003590000-memory.dmp

Filesize
64KB

Download
memory/2392-63-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download

Analysis

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