38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2

Analysis

max time kernel
142s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 08:03

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General

Target

38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe
Size

174KB
MD5

23fe7a27a1141faf9d3435adee6f2a4a
SHA1

b6873dc9146cd661fafa4d10a5ed8a871ecc6ca1
SHA256

38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2
SHA512

d718ce5de99515442e0d307d6bad216a603595b320299680bd83c628264ecef3dc007d9fbd9691b193c8a6e6aa8f96b0e1b8d7894cc89a696b5b725d093052b9
SSDEEP

3072:YpzT4fCQ3zBP4mYKoWMgKe32ulW1tB26d+2YyiE8kjPsAERQsApiD2FIdodqns42:Y14aQDuvWlmgAd+4jPsAERQsApiD2Ky

Score

8^/10

persistence

Malware Config

Signatures

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{83K0N414-Q680-5EJ8-1145-OSNX07Y06W5K}	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{83K0N414-Q680-5EJ8-1145-OSNX07Y06W5K}\StubPath = "\"C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\vbc.exe\""	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skype Plus = "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\vbc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe

description	pid	process	target process
PID 3036 set thread context of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe

Drops file in Windows directory 1 IoCs

Processes:

vbc.exe

description ioc process

File created C:\Windows\Microsoft.NET\Framework\v2.0.50727\.Identifier vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe

description pid process

Token: SeDebugPrivilege 3036 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe

description	ioc	process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\.Identifier	vbc.exe

description	pid	process
Token: SeDebugPrivilege	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe

description	pid	process	target process
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe
PID 3036 wrote to memory of 4508	3036	38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe
"C:\Users\Admin\AppData\Local\Temp\38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
2⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
PID:4508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3036-132-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/3036-133-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/3036-138-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/4508-134-0x0000000000000000-mapping.dmp

Download
memory/4508-135-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4508-137-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4508-139-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download