formbook | 4116c5111907369d23e1a5f7adf2b0cd13186d6155a8f9406b794f191180f914

General

Target

PO-29840032.exe
Size

495KB
MD5

16a8bcda6b8877e2a76f56ac5707eaa8
SHA1

2f6a4a474c53183a14ef815d2f3aa9cdb6a0b545
SHA256

4116c5111907369d23e1a5f7adf2b0cd13186d6155a8f9406b794f191180f914
SHA512

6cacea9c50c6f5d8fa96a6c8047db43458cd5159e87fe3c0807599b21ba80d4f31649b0f26c51edc352c0f55f2c405e32131d81baa70c0547a556efd253ad380

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.merckcbd.com/dei5/

Decoy

studiomullerphoto.com

reallionairewear.com

dogsalondoggy-tail.com

excelmache.net

bigdiscounters.com

7986799.com

ignition.guru

xiaoxu.info

jpinpd.com

solpool.info

uchooswrewards.com

everestengineeringworks.com

qianglongzhipin.com

deepimper-325.com

appliedrate.com

radsazemehr.com

vivabematividadesfisicas.com

capacitalo.com

somecore.com

listingclass.net

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3672-15-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3672-16-0x000000000041ECD0-mapping.dmp	formbook
behavioral2/memory/2100-24-0x0000000000CC0000-0x0000000000CEE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO-29840032.exePO-29840032.execmmon32.exe

description	pid	process	target process
PID 640 set thread context of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 3672 set thread context of 2580	3672	PO-29840032.exe	Explorer.EXE
PID 2100 set thread context of 2580	2100	cmmon32.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

2532 schtasks.exe

pid	process
2532	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

PO-29840032.execmmon32.exe

pid	process
3672	PO-29840032.exe
3672	PO-29840032.exe
3672	PO-29840032.exe
3672	PO-29840032.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe
2100	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PO-29840032.execmmon32.exe

pid process

3672 PO-29840032.exe
3672 PO-29840032.exe
3672 PO-29840032.exe
2100 cmmon32.exe
2100 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO-29840032.execmmon32.exe

description pid process

Token: SeDebugPrivilege 3672 PO-29840032.exe
Token: SeDebugPrivilege 2100 cmmon32.exe

description	pid	process
Token: SeDebugPrivilege	3672	PO-29840032.exe
Token: SeDebugPrivilege	2100	cmmon32.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO-29840032.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 640 wrote to memory of 2532	640	PO-29840032.exe	schtasks.exe
PID 640 wrote to memory of 2532	640	PO-29840032.exe	schtasks.exe
PID 640 wrote to memory of 2532	640	PO-29840032.exe	schtasks.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 640 wrote to memory of 3672	640	PO-29840032.exe	PO-29840032.exe
PID 2580 wrote to memory of 2100	2580	Explorer.EXE	cmmon32.exe
PID 2580 wrote to memory of 2100	2580	Explorer.EXE	cmmon32.exe
PID 2580 wrote to memory of 2100	2580	Explorer.EXE	cmmon32.exe
PID 2100 wrote to memory of 1616	2100	cmmon32.exe	cmd.exe
PID 2100 wrote to memory of 1616	2100	cmmon32.exe	cmd.exe
PID 2100 wrote to memory of 1616	2100	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:2580

C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe
"C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eejXKlefbIzpJy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4AB1.tmp"
3⤵
- Creates scheduled task(s)
PID:2532

C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe
"C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3672

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2208

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe"
3⤵
PID:1616

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\tmp4AB1.tmp
MD5
face80302ae4cf229a321000805684c4

SHA1
a88b083571d953aa4b9b4cdcece284dbf7bef8b7

SHA256
b195d688283b0b7bb40e86674a3df6d27c3198ca3bb13e0c50b29ee4b3483d4e

SHA512
69191376d44640516e7c6540f2bb4decb6b6f902386cb1b5d7945caa6aadba6079d49cf8313e47a24074e6ab18696cbb0884899c921c2780f4981fd3aa96e4bf

Download Submit
memory/640-2-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/640-3-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/640-5-0x00000000053C0000-0x00000000053C1000-memory.dmp

Filesize
4KB

Download
memory/640-6-0x0000000005960000-0x0000000005961000-memory.dmp

Filesize
4KB

Download
memory/640-7-0x0000000005500000-0x0000000005501000-memory.dmp

Filesize
4KB

Download
memory/640-8-0x00000000053A0000-0x00000000053A1000-memory.dmp

Filesize
4KB

Download
memory/640-9-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/640-10-0x0000000005360000-0x0000000005361000-memory.dmp

Filesize
4KB

Download
memory/640-11-0x0000000005850000-0x0000000005853000-memory.dmp

Filesize
12KB

Download
memory/640-12-0x0000000001240000-0x0000000001295000-memory.dmp

Filesize
340KB

Download
memory/1616-23-0x0000000000000000-mapping.dmp

Download
memory/2100-22-0x0000000001130000-0x000000000113C000-memory.dmp

Filesize
48KB

Download
memory/2100-21-0x0000000000000000-mapping.dmp

Download
memory/2100-24-0x0000000000CC0000-0x0000000000CEE000-memory.dmp

Filesize
184KB

Download
memory/2100-25-0x0000000004540000-0x0000000004860000-memory.dmp

Filesize
3.1MB

Download
memory/2100-26-0x0000000000ED0000-0x0000000000F63000-memory.dmp

Filesize
588KB

Download
memory/2532-13-0x0000000000000000-mapping.dmp

Download
memory/2580-20-0x0000000006050000-0x00000000061B5000-memory.dmp

Filesize
1.4MB

Download
memory/2580-27-0x00000000061C0000-0x00000000062D7000-memory.dmp

Filesize
1.1MB

Download
memory/3672-16-0x000000000041ECD0-mapping.dmp

Download
memory/3672-18-0x0000000001800000-0x0000000001B20000-memory.dmp

Filesize
3.1MB

Download
memory/3672-19-0x00000000012F0000-0x0000000001304000-memory.dmp

Filesize
80KB

Download
memory/3672-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads