formbook | 36d8a4369922f9ff965bc763a9f8ee775b4e4377fcd0d60ffdd58e742209f5d4

General

Target

LVvoucher.exe
Size

779KB
MD5

4f2cf362036af705349843df3419ae5d
SHA1

49dfd4b26e8c9f2cc76df24c55e6616f438bf422
SHA256

77604e2646be4fb59a16e33ca5e78a73ec5045b8f1cce6f5ba16c11304b1c2ee
SHA512

8b5682f5955cdb1e1218735d100234f571f27a2b793cedd68572e8e62a1cef0cf716327b44fbaa3f29bc792a5e842bbfc8320ed175580333dc57eff8cf7fb586

Score

10^/10

formbook oh75 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

oh75

Decoy

denizgidam.com

6cc06.com

charlottewaldburgzeil.com

medijanus.com

qingdaoyiersan.com

datcabilgisayar.xyz

111439d.com

xn--1ruo40k.com

wu6enxwcx5h3.xyz

vnscloud.net

brtka.xyz

showztime.com

promocoesdedezenbro.com

wokpy.com

chnowuk.online

rockshotscafe.com

pelrjy.com

nato-riness.com

feixiang-chem.com

thcoinexchange.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3828-130-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/372-148-0x0000000000B80000-0x0000000000BAF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

LVvoucher.exeLVvoucher.exenetsh.exe

description	pid	process	target process
PID 912 set thread context of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 3828 set thread context of 3056	3828	LVvoucher.exe	Explorer.EXE
PID 372 set thread context of 3056	372	netsh.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3856 schtasks.exe

pid	process
3856	schtasks.exe

Suspicious behavior: EnumeratesProcesses 37 IoCs

Processes:

LVvoucher.exepowershell.exenetsh.exe

pid	process
3828	LVvoucher.exe
3828	LVvoucher.exe
3828	LVvoucher.exe
3828	LVvoucher.exe
772	powershell.exe
772	powershell.exe
772	powershell.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe
372	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3056 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

LVvoucher.exenetsh.exe

pid process

3828 LVvoucher.exe
3828 LVvoucher.exe
3828 LVvoucher.exe
372 netsh.exe
372 netsh.exe

pid	process
3056	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

LVvoucher.exepowershell.exenetsh.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3828	LVvoucher.exe
Token: SeDebugPrivilege	772	powershell.exe
Token: SeDebugPrivilege	372	netsh.exe
Token: SeShutdownPrivilege	3056	Explorer.EXE
Token: SeCreatePagefilePrivilege	3056	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

LVvoucher.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 912 wrote to memory of 772	912	LVvoucher.exe	powershell.exe
PID 912 wrote to memory of 772	912	LVvoucher.exe	powershell.exe
PID 912 wrote to memory of 772	912	LVvoucher.exe	powershell.exe
PID 912 wrote to memory of 3856	912	LVvoucher.exe	schtasks.exe
PID 912 wrote to memory of 3856	912	LVvoucher.exe	schtasks.exe
PID 912 wrote to memory of 3856	912	LVvoucher.exe	schtasks.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 912 wrote to memory of 3828	912	LVvoucher.exe	LVvoucher.exe
PID 3056 wrote to memory of 372	3056	Explorer.EXE	netsh.exe
PID 3056 wrote to memory of 372	3056	Explorer.EXE	netsh.exe
PID 3056 wrote to memory of 372	3056	Explorer.EXE	netsh.exe
PID 372 wrote to memory of 1020	372	netsh.exe	cmd.exe
PID 372 wrote to memory of 1020	372	netsh.exe	cmd.exe
PID 372 wrote to memory of 1020	372	netsh.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056

C:\Users\Admin\AppData\Local\Temp\LVvoucher.exe
"C:\Users\Admin\AppData\Local\Temp\LVvoucher.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UcgxBJ.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UcgxBJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6AA8.tmp"
3⤵
- Creates scheduled task(s)
PID:3856

C:\Users\Admin\AppData\Local\Temp\LVvoucher.exe
"C:\Users\Admin\AppData\Local\Temp\LVvoucher.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3828

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\LVvoucher.exe"
3⤵
PID:1020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6AA8.tmp
MD5
351bd97f7f56332469eba2deec77c90d

SHA1
6f7e870cee2ab689fa6deec145826a6db2bf01a5

SHA256
d6e4306136824997cf6951d3bd4e0c5e8d0035325eedeaf797c83dfcae63d772

SHA512
0eaab0294beac6e0c5e924fbed98b265f53cb610257b2896a508e05bad9e447efeb1948df4440fe694b732395f84c95107674089ef754b81c93af3bc7aaf61dc

Download Submit
memory/372-377-0x0000000003390000-0x0000000003522000-memory.dmp

Filesize
1.6MB

Download
memory/372-149-0x0000000003530000-0x0000000003850000-memory.dmp

Filesize
3.1MB

Download
memory/372-147-0x0000000000EB0000-0x0000000000ECE000-memory.dmp

Filesize
120KB

Download
memory/372-148-0x0000000000B80000-0x0000000000BAF000-memory.dmp

Filesize
188KB

Download
memory/772-156-0x0000000009640000-0x0000000009673000-memory.dmp

Filesize
204KB

Download
memory/772-141-0x0000000007E20000-0x0000000008170000-memory.dmp

Filesize
3.3MB

Download
memory/772-363-0x00000000098D0000-0x00000000098D8000-memory.dmp

Filesize
32KB

Download
memory/772-358-0x00000000098E0000-0x00000000098FA000-memory.dmp

Filesize
104KB

Download
memory/772-129-0x0000000004A70000-0x0000000004AA6000-memory.dmp

Filesize
216KB

Download
memory/772-201-0x0000000004BA3000-0x0000000004BA4000-memory.dmp

Filesize
4KB

Download
memory/772-131-0x0000000007530000-0x0000000007B58000-memory.dmp

Filesize
6.2MB

Download
memory/772-133-0x0000000004BA2000-0x0000000004BA3000-memory.dmp

Filesize
4KB

Download
memory/772-132-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

Filesize
4KB

Download
memory/772-135-0x00000000073B0000-0x00000000073D2000-memory.dmp

Filesize
136KB

Download
memory/772-136-0x0000000007CB0000-0x0000000007D16000-memory.dmp

Filesize
408KB

Download
memory/772-137-0x0000000007BD0000-0x0000000007C36000-memory.dmp

Filesize
408KB

Download
memory/772-164-0x0000000009960000-0x00000000099F4000-memory.dmp

Filesize
592KB

Download
memory/772-163-0x000000007EAA0000-0x000000007EAA1000-memory.dmp

Filesize
4KB

Download
memory/772-162-0x0000000009770000-0x0000000009815000-memory.dmp

Filesize
660KB

Download
memory/772-157-0x0000000009600000-0x000000000961E000-memory.dmp

Filesize
120KB

Download
memory/772-142-0x0000000007C80000-0x0000000007C9C000-memory.dmp

Filesize
112KB

Download
memory/772-143-0x00000000082B0000-0x00000000082FB000-memory.dmp

Filesize
300KB

Download
memory/772-144-0x00000000085B0000-0x0000000008626000-memory.dmp

Filesize
472KB

Download
memory/912-123-0x00000000071B0000-0x00000000071BC000-memory.dmp

Filesize
48KB

Download
memory/912-121-0x0000000004AF0000-0x0000000004FEE000-memory.dmp

Filesize
5.0MB

Download
memory/912-120-0x0000000004B90000-0x0000000004C22000-memory.dmp

Filesize
584KB

Download
memory/912-118-0x0000000000200000-0x00000000002CA000-memory.dmp

Filesize
808KB

Download
memory/912-124-0x00000000074E0000-0x000000000757C000-memory.dmp

Filesize
624KB

Download
memory/912-122-0x0000000004B20000-0x0000000004B2A000-memory.dmp

Filesize
40KB

Download
memory/912-125-0x00000000077A0000-0x000000000780A000-memory.dmp

Filesize
424KB

Download
memory/912-119-0x0000000004FF0000-0x00000000054EE000-memory.dmp

Filesize
5.0MB

Download
memory/3056-140-0x0000000005C10000-0x0000000005D3D000-memory.dmp

Filesize
1.2MB

Download
memory/3056-378-0x0000000005D40000-0x0000000005EB9000-memory.dmp

Filesize
1.5MB

Download
memory/3828-139-0x0000000000BE0000-0x0000000000BF4000-memory.dmp

Filesize
80KB

Download
memory/3828-138-0x0000000001040000-0x0000000001360000-memory.dmp

Filesize
3.1MB

Download
memory/3828-130-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads