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
behavioral1/memory/1012-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1012-11-0x000000000041ECD0-mapping.dmp	formbook
behavioral1/memory/1648-20-0x0000000000090000-0x00000000000BE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

620 cmd.exe

pid	process
620	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO-29840032.exePO-29840032.exemsiexec.exe

description	pid	process	target process
PID 2008 set thread context of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 1012 set thread context of 1248	1012	PO-29840032.exe	Explorer.EXE
PID 1648 set thread context of 1248	1648	msiexec.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

1896 schtasks.exe

pid	process
1896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

PO-29840032.exePO-29840032.exemsiexec.exe

pid	process
2008	PO-29840032.exe
1012	PO-29840032.exe
1012	PO-29840032.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PO-29840032.exemsiexec.exe

pid process

1012 PO-29840032.exe
1012 PO-29840032.exe
1012 PO-29840032.exe
1648 msiexec.exe
1648 msiexec.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO-29840032.exePO-29840032.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 2008 PO-29840032.exe
Token: SeDebugPrivilege 1012 PO-29840032.exe
Token: SeDebugPrivilege 1648 msiexec.exe

pid	process
1012	PO-29840032.exe
1012	PO-29840032.exe
1012	PO-29840032.exe
1648	msiexec.exe
1648	msiexec.exe

description	pid	process
Token: SeDebugPrivilege	2008	PO-29840032.exe
Token: SeDebugPrivilege	1012	PO-29840032.exe
Token: SeDebugPrivilege	1648	msiexec.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

PO-29840032.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 2008 wrote to memory of 1896	2008	PO-29840032.exe	schtasks.exe
PID 2008 wrote to memory of 1896	2008	PO-29840032.exe	schtasks.exe
PID 2008 wrote to memory of 1896	2008	PO-29840032.exe	schtasks.exe
PID 2008 wrote to memory of 1896	2008	PO-29840032.exe	schtasks.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 2008 wrote to memory of 1012	2008	PO-29840032.exe	PO-29840032.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1248 wrote to memory of 1648	1248	Explorer.EXE	msiexec.exe
PID 1648 wrote to memory of 620	1648	msiexec.exe	cmd.exe
PID 1648 wrote to memory of 620	1648	msiexec.exe	cmd.exe
PID 1648 wrote to memory of 620	1648	msiexec.exe	cmd.exe
PID 1648 wrote to memory of 620	1648	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1248

C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe
"C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eejXKlefbIzpJy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED6B.tmp"
3⤵
- Creates scheduled task(s)
PID:1896

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:1012

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:1648

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO-29840032.exe"
3⤵
- Deletes itself
PID:620

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\tmpED6B.tmp
MD5
6f5a3f2d05075bf8b2db6c17c09d7213

SHA1
f09d1e2370db97b1ff8166f8576a2d1a57ac839a

SHA256
934c00f2ce62005e73581559efcb24ee4361b9a3fb230393a0c57f481d505978

SHA512
c1bb695743df58df0833a2ce9e69cbc90ea3be70cd70c61693de39be427e0a22889978b19e74da9fa873231dd56f3c75d31a78ed8874d8e719c66dfb9767a4ae

Download Submit
memory/620-18-0x0000000000000000-mapping.dmp

Download
memory/1012-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1012-14-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1012-13-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download
memory/1012-11-0x000000000041ECD0-mapping.dmp

Download
memory/1248-15-0x0000000003B00000-0x0000000003C3C000-memory.dmp

Filesize
1.2MB

Download
memory/1648-16-0x0000000000000000-mapping.dmp

Download
memory/1648-17-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1648-19-0x0000000000B90000-0x0000000000BA4000-memory.dmp

Filesize
80KB

Download
memory/1648-20-0x0000000000090000-0x00000000000BE000-memory.dmp

Filesize
184KB

Download
memory/1648-21-0x0000000002430000-0x0000000002733000-memory.dmp

Filesize
3.0MB

Download
memory/1648-22-0x0000000000AB0000-0x0000000000B43000-memory.dmp

Filesize
588KB

Download
memory/1896-8-0x0000000000000000-mapping.dmp

Download
memory/2008-7-0x0000000005C20000-0x0000000005C75000-memory.dmp

Filesize
340KB

Download
memory/2008-6-0x00000000003A0000-0x00000000003A3000-memory.dmp

Filesize
12KB

Download
memory/2008-5-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

Filesize
4KB

Download
memory/2008-2-0x0000000074BA0000-0x000000007528E000-memory.dmp

Filesize
6.9MB

Download
memory/2008-3-0x0000000000CC0000-0x0000000000CC1000-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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