formbook | 93a60b00b3933b1d036aa791e81efe05249c5563384f2ddd04492b6be6563583

General

Target

Payment-Advice.exe
Size

2.6MB
MD5

3e416710f120b91849b1878d07ecacd0
SHA1

71eb6640520773803b0201cf4466ff57cb3ac81f
SHA256

a56fd898ced9c080955b0ee12f4d652bd1b74ddde43470e94033a288e2b97dfc
SHA512

3dd24bbff081711efb22f9c4b056e820fbbb45722ef911c7b9bf68b91ed436b2f16af95d2970b29c1d77858f922b4e91b8f2d61856d06d31731de983a796b451
SSDEEP

49152:l0LiB3F6szZwltsrSKYsbCNICNfoAgQflqB:l3F62ZwDqSsbODNfoAgqK

Score

10^/10

formbook gune rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gune

Decoy

artentarn.net

allstarpurchaslng.com

lendhave.quest

3yza.com

qpyikn.shop

play-fortuna-win-15.top

jaspergirl.store

naranjacanelaymiel.online

hiddenvalley-farms.com

gas-grills-66023.com

fp-wp.com

livepix.ltda

liholagroup.com

erlinjobs.com

doctorhooper.net

sggwmdkk.shop

ujuyzw.shop

gameclubzeed.com

myhomewish.com

ontopageone.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2792-143-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2792-149-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4688-151-0x00000000010B0000-0x00000000010DF000-memory.dmp	formbook
behavioral2/memory/4688-154-0x00000000010B0000-0x00000000010DF000-memory.dmp	formbook

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	Payment-Advice.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 2792	1952	Payment-Advice.exe	84
PID 2792 set thread context of 2532	2792	MSBuild.exe	40
PID 4688 set thread context of 2532	4688	msiexec.exe	40

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
5080	powershell.exe
5080	powershell.exe
2792	MSBuild.exe
2792	MSBuild.exe
2792	MSBuild.exe
2792	MSBuild.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe
4688	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2532	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2792	MSBuild.exe
2792	MSBuild.exe
2792	MSBuild.exe
4688	msiexec.exe
4688	msiexec.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	Payment-Advice.exe
Token: SeDebugPrivilege	5080	powershell.exe
Token: SeDebugPrivilege	2792	MSBuild.exe
Token: SeDebugPrivilege	4688	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 5080	1952	Payment-Advice.exe	81
PID 1952 wrote to memory of 5080	1952	Payment-Advice.exe	81
PID 1952 wrote to memory of 5080	1952	Payment-Advice.exe	81
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 1952 wrote to memory of 2792	1952	Payment-Advice.exe	84
PID 2532 wrote to memory of 4688	2532	Explorer.EXE	85
PID 2532 wrote to memory of 4688	2532	Explorer.EXE	85
PID 2532 wrote to memory of 4688	2532	Explorer.EXE	85
PID 4688 wrote to memory of 3856	4688	msiexec.exe	86
PID 4688 wrote to memory of 3856	4688	msiexec.exe	86
PID 4688 wrote to memory of 3856	4688	msiexec.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment-Advice.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5080
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe purecrypter.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2792
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:3856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1952-133-0x0000000005AD0000-0x0000000005AF2000-memory.dmp

Filesize
136KB

Download
memory/1952-132-0x0000000000BC0000-0x0000000000E64000-memory.dmp

Filesize
2.6MB

Download
memory/2532-157-0x0000000008370000-0x0000000008489000-memory.dmp

Filesize
1.1MB

Download
memory/2532-156-0x0000000008370000-0x0000000008489000-memory.dmp

Filesize
1.1MB

Download
memory/2532-147-0x0000000008280000-0x0000000008367000-memory.dmp

Filesize
924KB

Download
memory/2792-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-149-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-146-0x00000000017C0000-0x00000000017D4000-memory.dmp

Filesize
80KB

Download
memory/2792-145-0x00000000017E0000-0x0000000001B2A000-memory.dmp

Filesize
3.3MB

Download
memory/4688-150-0x00000000008A0000-0x00000000008B2000-memory.dmp

Filesize
72KB

Download
memory/4688-154-0x00000000010B0000-0x00000000010DF000-memory.dmp

Filesize
188KB

Download
memory/4688-155-0x0000000002E70000-0x0000000002F03000-memory.dmp

Filesize
588KB

Download
memory/4688-152-0x0000000003030000-0x000000000337A000-memory.dmp

Filesize
3.3MB

Download
memory/4688-151-0x00000000010B0000-0x00000000010DF000-memory.dmp

Filesize
188KB

Download
memory/5080-138-0x00000000054A0000-0x0000000005506000-memory.dmp

Filesize
408KB

Download
memory/5080-137-0x0000000004D40000-0x0000000004DA6000-memory.dmp

Filesize
408KB

Download
memory/5080-139-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

Filesize
120KB

Download
memory/5080-136-0x0000000004DC0000-0x00000000053E8000-memory.dmp

Filesize
6.2MB

Download
memory/5080-141-0x0000000005FE0000-0x0000000005FFA000-memory.dmp

Filesize
104KB

Download
memory/5080-140-0x0000000007350000-0x00000000079CA000-memory.dmp

Filesize
6.5MB

Download
memory/5080-135-0x00000000024F0000-0x0000000002526000-memory.dmp

Filesize
216KB

Download

Analysis

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