0fc450ebd441e9037f509104c318a1c38cdbf7d6dd2fea77b1011d6fa956ca52

Analysis

max time kernel
117s
max time network
40s
platform
windows7_x64
resource
win7v20210408
submitted
22-07-2021 08:25

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General

Target

vbc.exe
Size

410KB
MD5

63a91aa1f367950eaef7b38117483628
SHA1

c70db448a527d8493c69f635d0ac981d0855fd2e
SHA256

0fc450ebd441e9037f509104c318a1c38cdbf7d6dd2fea77b1011d6fa956ca52
SHA512

a5305e285371a533cb57aefe8ec3eaa6a5f5f345d9452f0462bdbea07590df2ce4c82ad0a63868381a38ffd916408d8ff055bc9e505afc249924e54294bda906

Score

7^/10

Malware Config

Signatures

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

vbc.exe

description pid process target process

PID 748 set thread context of 1808 748 vbc.exe vbc.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2000 1808 WerFault.exe vbc.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

WerFault.exe

pid process

2000 WerFault.exe
2000 WerFault.exe
2000 WerFault.exe
2000 WerFault.exe
2000 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

2000 WerFault.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

vbc.exe

pid process

748 vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 2000 WerFault.exe

description	pid	process	target process
PID 748 set thread context of 1808	748	vbc.exe	vbc.exe

pid	pid_target	process	target process
2000	1808	WerFault.exe	vbc.exe

pid	process
2000	WerFault.exe
2000	WerFault.exe
2000	WerFault.exe
2000	WerFault.exe
2000	WerFault.exe

pid	process
2000	WerFault.exe

pid	process
748	vbc.exe

description	pid	process
Token: SeDebugPrivilege	2000	WerFault.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

vbc.exevbc.exe

description	pid	process	target process
PID 748 wrote to memory of 1808	748	vbc.exe	vbc.exe
PID 748 wrote to memory of 1808	748	vbc.exe	vbc.exe
PID 748 wrote to memory of 1808	748	vbc.exe	vbc.exe
PID 748 wrote to memory of 1808	748	vbc.exe	vbc.exe
PID 748 wrote to memory of 1808	748	vbc.exe	vbc.exe
PID 1808 wrote to memory of 2000	1808	vbc.exe	WerFault.exe
PID 1808 wrote to memory of 2000	1808	vbc.exe	WerFault.exe
PID 1808 wrote to memory of 2000	1808	vbc.exe	WerFault.exe
PID 1808 wrote to memory of 2000	1808	vbc.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:748

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 524
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2000

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/748-60-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/748-63-0x00000000001B0000-0x00000000001B2000-memory.dmp

Filesize
8KB

Download
memory/1808-61-0x000000000040188B-mapping.dmp

Download
memory/1808-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1808-65-0x0000000004490000-0x00000000044C7000-memory.dmp

Filesize
220KB

Download
memory/1808-67-0x0000000004451000-0x0000000004452000-memory.dmp

Filesize
4KB

Download
memory/2000-66-0x0000000000000000-mapping.dmp

Download
memory/2000-69-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download