formbook | 7ad52e6203a53f00cd4fe729c698a8c4fb5aa3641b762217e0e32448e81ea563

General

Target

Bank Slip.exe
Size

687KB
MD5

70b451bd89a63b00a420d5104fe67853
SHA1

dc119895d29fd939c45ca5f839c4f94ee81df84d
SHA256

9611957db07f36a13d7e43f5c32c08c0e3c44c689e7d88c832490e3d259cfb48
SHA512

db248cf9b258a34dbf449ecce4b1e473adaff398bf0955cc4b700ca3aa881ad148d90a02a70958ba01087b04cfda9625a92cbaded8afe7000709b2ecf5a5d5e2

Score

10^/10

formbook r4gk rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

r4gk

C2

http://www.aprilsaak.quest/r4gk/

Decoy

quantalix.com

animalblog-eggs.com

039skz.xyz

guttas.net

lasantadayparty.com

protegerfinanceservices.com

vixtest.xyz

digitaleconomy.global

0xpax.xyz

mobilehome1688.com

themotionpartners.com

valueney.com

hattuafhv.quest

js0061gj.net

360metaverse.biz

seculardata.com

346727688.xyz

smartmapom.com

moksel.com

exoduswatchco.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3452-128-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3452-129-0x000000000041F110-mapping.dmp	formbook
behavioral2/memory/2440-137-0x0000000000F10000-0x0000000000F3F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Bank Slip.exeBank Slip.exehelp.exe

description	pid	process	target process
PID 3604 set thread context of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3452 set thread context of 3020	3452	Bank Slip.exe	Explorer.EXE
PID 2440 set thread context of 3020	2440	help.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

704 schtasks.exe

pid	process
704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

Bank Slip.exeBank Slip.exehelp.exe

pid	process
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3604	Bank Slip.exe
3452	Bank Slip.exe
3452	Bank Slip.exe
3452	Bank Slip.exe
3452	Bank Slip.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe
2440	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Bank Slip.exehelp.exe

pid process

3452 Bank Slip.exe
3452 Bank Slip.exe
3452 Bank Slip.exe
2440 help.exe
2440 help.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Bank Slip.exeBank Slip.exehelp.exe

description pid process

Token: SeDebugPrivilege 3604 Bank Slip.exe
Token: SeDebugPrivilege 3452 Bank Slip.exe
Token: SeDebugPrivilege 2440 help.exe

pid	process
3020	Explorer.EXE

pid	process
3452	Bank Slip.exe
3452	Bank Slip.exe
3452	Bank Slip.exe
2440	help.exe
2440	help.exe

description	pid	process
Token: SeDebugPrivilege	3604	Bank Slip.exe
Token: SeDebugPrivilege	3452	Bank Slip.exe
Token: SeDebugPrivilege	2440	help.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Bank Slip.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 3604 wrote to memory of 704	3604	Bank Slip.exe	schtasks.exe
PID 3604 wrote to memory of 704	3604	Bank Slip.exe	schtasks.exe
PID 3604 wrote to memory of 704	3604	Bank Slip.exe	schtasks.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3604 wrote to memory of 3452	3604	Bank Slip.exe	Bank Slip.exe
PID 3020 wrote to memory of 2440	3020	Explorer.EXE	help.exe
PID 3020 wrote to memory of 2440	3020	Explorer.EXE	help.exe
PID 3020 wrote to memory of 2440	3020	Explorer.EXE	help.exe
PID 2440 wrote to memory of 504	2440	help.exe	cmd.exe
PID 2440 wrote to memory of 504	2440	help.exe	cmd.exe
PID 2440 wrote to memory of 504	2440	help.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\Bank Slip.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Slip.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3604

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JtkCutZjRQvsVL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE972.tmp"
3⤵
- Creates scheduled task(s)
PID:704

C:\Users\Admin\AppData\Local\Temp\Bank Slip.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Slip.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3452

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Bank Slip.exe"
3⤵
PID:504

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

memory/504-135-0x0000000000000000-mapping.dmp

Download
memory/704-127-0x0000000000000000-mapping.dmp

Download
memory/2440-139-0x0000000003AA0000-0x0000000003B33000-memory.dmp

Filesize
588KB

Download
memory/2440-138-0x0000000003780000-0x0000000003AA0000-memory.dmp

Filesize
3.1MB

Download
memory/2440-136-0x00000000011F0000-0x00000000011F7000-memory.dmp

Filesize
28KB

Download
memory/2440-137-0x0000000000F10000-0x0000000000F3F000-memory.dmp

Filesize
188KB

Download
memory/2440-134-0x0000000000000000-mapping.dmp

Download
memory/3020-133-0x0000000005480000-0x00000000055C0000-memory.dmp

Filesize
1.2MB

Download
memory/3020-140-0x00000000027A0000-0x000000000284B000-memory.dmp

Filesize
684KB

Download
memory/3452-129-0x000000000041F110-mapping.dmp

Download
memory/3452-132-0x0000000000E90000-0x0000000000EA4000-memory.dmp

Filesize
80KB

Download
memory/3452-131-0x0000000000F00000-0x0000000001220000-memory.dmp

Filesize
3.1MB

Download
memory/3452-128-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3604-118-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/3604-126-0x00000000077D0000-0x0000000007822000-memory.dmp

Filesize
328KB

Download
memory/3604-125-0x0000000007730000-0x0000000007731000-memory.dmp

Filesize
4KB

Download
memory/3604-124-0x00000000073F0000-0x00000000073F7000-memory.dmp

Filesize
28KB

Download
memory/3604-123-0x0000000005090000-0x0000000005091000-memory.dmp

Filesize
4KB

Download
memory/3604-122-0x0000000004F10000-0x000000000540E000-memory.dmp

Filesize
5.0MB

Download
memory/3604-121-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

Filesize
4KB

Download
memory/3604-120-0x0000000005410000-0x0000000005411000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads