formbook | 134447d4a42fa0c68719a166022b19728ab3b771a025fcb40b9e01eb0472bd8b

General

Target

3131_50SG0BK00T1,pdf.exe
Size

1.0MB
MD5

8898f586289faf1cc074c328eb64e0c6
SHA1

8df1daf9fb7147fd61a1e18a5b1e5bfa7bbe94fa
SHA256

134447d4a42fa0c68719a166022b19728ab3b771a025fcb40b9e01eb0472bd8b
SHA512

1ef511b05999e0346b8698f51b5a7950744dff2f6ff726a39414886c840a5e191e4dcf5ab5c54cbb23df79199da225f8da78af8e74c0cc7b677c9c7bec1e0ea0

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.radissonhotelsusa.com/cp5/

Decoy

glcpunix.com

marabierta-coaching.com

osrs-remastered.com

lineagehealthxwellness.com

dunyadagezilecekyerler.com

negociosyfinanzasfaciles.com

bifa510.com

houseofutamasa.com

dopeneeds.com

sailacc.com

thewindgallery.com

elvinrisky.com

flowersassistedliving.com

lzbnwy.com

mrpentester.com

joinmytradingteam.com

jasabuatvisa.com

meherunnessa-foundation.com

notyourtypicaljocks.com

lobo-sports.com

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/888-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/888-11-0x000000000041EBF0-mapping.dmp	formbook
behavioral1/memory/844-19-0x00000000000C0000-0x00000000000EE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

3131_50SG0BK00T1,pdf.exeMSBuild.execmmon32.exe

description	pid	process	target process
PID 1288 set thread context of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 888 set thread context of 1200	888	MSBuild.exe	Explorer.EXE
PID 844 set thread context of 1200	844	cmmon32.exe	Explorer.EXE

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

684 schtasks.exe

pid	process
684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

3131_50SG0BK00T1,pdf.exeMSBuild.execmmon32.exe

pid	process
1288	3131_50SG0BK00T1,pdf.exe
888	MSBuild.exe
888	MSBuild.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe
844	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

MSBuild.execmmon32.exe

pid process

888 MSBuild.exe
888 MSBuild.exe
888 MSBuild.exe
844 cmmon32.exe
844 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

3131_50SG0BK00T1,pdf.exeMSBuild.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1288 3131_50SG0BK00T1,pdf.exe
Token: SeDebugPrivilege 888 MSBuild.exe
Token: SeDebugPrivilege 844 cmmon32.exe

pid	process
888	MSBuild.exe
888	MSBuild.exe
888	MSBuild.exe
844	cmmon32.exe
844	cmmon32.exe

description	pid	process
Token: SeDebugPrivilege	1288	3131_50SG0BK00T1,pdf.exe
Token: SeDebugPrivilege	888	MSBuild.exe
Token: SeDebugPrivilege	844	cmmon32.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

3131_50SG0BK00T1,pdf.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 1288 wrote to memory of 684	1288	3131_50SG0BK00T1,pdf.exe	schtasks.exe
PID 1288 wrote to memory of 684	1288	3131_50SG0BK00T1,pdf.exe	schtasks.exe
PID 1288 wrote to memory of 684	1288	3131_50SG0BK00T1,pdf.exe	schtasks.exe
PID 1288 wrote to memory of 684	1288	3131_50SG0BK00T1,pdf.exe	schtasks.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1288 wrote to memory of 888	1288	3131_50SG0BK00T1,pdf.exe	MSBuild.exe
PID 1200 wrote to memory of 844	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 844	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 844	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 844	1200	Explorer.EXE	cmmon32.exe
PID 844 wrote to memory of 916	844	cmmon32.exe	cmd.exe
PID 844 wrote to memory of 916	844	cmmon32.exe	cmd.exe
PID 844 wrote to memory of 916	844	cmmon32.exe	cmd.exe
PID 844 wrote to memory of 916	844	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Local\Temp\3131_50SG0BK00T1,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\3131_50SG0BK00T1,pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jLhxUiIQnuLl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EF0.tmp"
3⤵
- Creates scheduled task(s)
PID:684

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:888

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:844

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:916

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7EF0.tmp
MD5
851e2c84c5f2b9beb34e0a27b63947be

SHA1
6f0e6ce445877ee652e778f18c0a60e54ed222ba

SHA256
d2fb195635bd2e4332b46a49610f5581234963141658a08875431dd6d02f5470

SHA512
0d8b8f232aea7ba32a48c1a3a6bcc0276e20200e48a5d5d1ead585214c31882193d0ae33f473268add276da1deac0835077b11ed2d4eec460aeb7a8bff7234bd

Download Submit
memory/684-8-0x0000000000000000-mapping.dmp

Download
memory/844-16-0x0000000000000000-mapping.dmp

Download
memory/844-21-0x0000000000840000-0x00000000008D3000-memory.dmp

Filesize
588KB

Download
memory/844-20-0x00000000020E0000-0x00000000023E3000-memory.dmp

Filesize
3.0MB

Download
memory/844-19-0x00000000000C0000-0x00000000000EE000-memory.dmp

Filesize
184KB

Download
memory/844-18-0x0000000000CD0000-0x0000000000CDD000-memory.dmp

Filesize
52KB

Download
memory/888-11-0x000000000041EBF0-mapping.dmp

Download
memory/888-13-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/888-14-0x00000000003D0000-0x00000000003E4000-memory.dmp

Filesize
80KB

Download
memory/888-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/916-17-0x0000000000000000-mapping.dmp

Download
memory/1200-15-0x0000000004FE0000-0x0000000005119000-memory.dmp

Filesize
1.2MB

Download
memory/1288-2-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/1288-7-0x0000000004C30000-0x0000000004C96000-memory.dmp

Filesize
408KB

Download
memory/1288-6-0x0000000000550000-0x0000000000573000-memory.dmp

Filesize
140KB

Download
memory/1288-5-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

Filesize
4KB

Download
memory/1288-3-0x0000000001210000-0x0000000001211000-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