formbook | 331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3

General

Target

331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe
Size

599KB
MD5

2417cdb09f72141abfa45cb64e699d91
SHA1

1ddc6b218dd520915ba8933e8214f307387b0e13
SHA256

331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3
SHA512

39e83bd1bb9c0a2d529216ba75bd5ad15ebffb836c188e2723633e58203d2008ff6efb3995b51209992eee3120a36852939925d0282b4b218ceafd0c98f622c6
SSDEEP

12288:Hiu6oMr21DjiSdBaLMl7kKxYBQWHm6ayJNMH00qLsPBUr4wtJ:Hi/KDjJdPbyvm6DrMHPsLr/L

Score

10^/10

formbook fs83 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs83

Decoy

blastol.space

tomwalkerisfalco.com

us-sumatrraslimbellytonic.com

drywallandpaintingservice.com

vntapp.net

passportpages.site

at-mim.com

yeondagoods.com

teomanyildirim.com

paygame.site

senze.art

alhandco.com

9831bsej.xyz

traumatic.xyz

sos-soutien.com

thetechnolgy.live

washing-machine-46612.bond

marvsneakers.com

shequbaike.net

xc4f35fg4h35fg4h53.top

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2268-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2268-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2124-29-0x0000000000070000-0x000000000009F000-memory.dmp	formbook
behavioral1/memory/2124-31-0x0000000000070000-0x000000000009F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exeRegSvcs.execscript.exe

description	pid	process	target process
PID 1872 set thread context of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 2268 set thread context of 1376	2268	RegSvcs.exe	Explorer.EXE
PID 2124 set thread context of 1376	2124	cscript.exe	Explorer.EXE

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

RegSvcs.exepowershell.execscript.exe

pid	process
2268	RegSvcs.exe
2268	RegSvcs.exe
2024	powershell.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe
2124	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.execscript.exe

pid process

2268 RegSvcs.exe
2268 RegSvcs.exe
2268 RegSvcs.exe
2124 cscript.exe
2124 cscript.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RegSvcs.exepowershell.execscript.exe

description pid process

Token: SeDebugPrivilege 2268 RegSvcs.exe
Token: SeDebugPrivilege 2024 powershell.exe
Token: SeDebugPrivilege 2124 cscript.exe

description	pid	process
Token: SeDebugPrivilege	2268	RegSvcs.exe
Token: SeDebugPrivilege	2024	powershell.exe
Token: SeDebugPrivilege	2124	cscript.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 1872 wrote to memory of 2024	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	powershell.exe
PID 1872 wrote to memory of 2024	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	powershell.exe
PID 1872 wrote to memory of 2024	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	powershell.exe
PID 1872 wrote to memory of 2024	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	powershell.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1872 wrote to memory of 2268	1872	331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe	RegSvcs.exe
PID 1376 wrote to memory of 2124	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 2124	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 2124	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 2124	1376	Explorer.EXE	cscript.exe
PID 2124 wrote to memory of 2508	2124	cscript.exe	cmd.exe
PID 2124 wrote to memory of 2508	2124	cscript.exe	cmd.exe
PID 2124 wrote to memory of 2508	2124	cscript.exe	cmd.exe
PID 2124 wrote to memory of 2508	2124	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe
"C:\Users\Admin\AppData\Local\Temp\331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1872

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2024

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2268

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2508

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1376-15-0x0000000003090000-0x0000000003190000-memory.dmp

Filesize
1024KB

Download
memory/1376-34-0x0000000004C40000-0x0000000004D26000-memory.dmp

Filesize
920KB

Download
memory/1376-20-0x0000000004C40000-0x0000000004D26000-memory.dmp

Filesize
920KB

Download
memory/1872-7-0x00000000005E0000-0x0000000000656000-memory.dmp

Filesize
472KB

Download
memory/1872-3-0x0000000004E50000-0x0000000004EE2000-memory.dmp

Filesize
584KB

Download
memory/1872-5-0x00000000004C0000-0x00000000004CE000-memory.dmp

Filesize
56KB

Download
memory/1872-6-0x00000000004D0000-0x00000000004E4000-memory.dmp

Filesize
80KB

Download
memory/1872-1-0x0000000074B70000-0x000000007525E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-0-0x0000000000260000-0x00000000002FA000-memory.dmp

Filesize
616KB

Download
memory/1872-4-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/1872-21-0x0000000074B70000-0x000000007525E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-2-0x00000000049C0000-0x0000000004A00000-memory.dmp

Filesize
256KB

Download
memory/2024-26-0x000000006FAC0000-0x000000007006B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-22-0x000000006FAC0000-0x000000007006B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-25-0x000000006FAC0000-0x000000007006B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-23-0x0000000002950000-0x0000000002990000-memory.dmp

Filesize
256KB

Download
memory/2024-24-0x0000000002950000-0x0000000002990000-memory.dmp

Filesize
256KB

Download
memory/2124-29-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/2124-27-0x0000000000230000-0x0000000000252000-memory.dmp

Filesize
136KB

Download
memory/2124-28-0x0000000000230000-0x0000000000252000-memory.dmp

Filesize
136KB

Download
memory/2124-30-0x00000000020D0000-0x00000000023D3000-memory.dmp

Filesize
3.0MB

Download
memory/2124-31-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/2124-32-0x0000000001E00000-0x0000000001E93000-memory.dmp

Filesize
588KB

Download
memory/2268-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2268-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2268-19-0x0000000000320000-0x0000000000334000-memory.dmp

Filesize
80KB

Download
memory/2268-13-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download
memory/2268-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2268-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2268-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads