formbook | 7139fbd600738d2f456c7f11ae105e45ab0bb6e14a473ae0e68391b8125da393

General

Target

PO_JAN907#092941_BARYSLpdf.exe
Size

928KB
MD5

e24296acfd8c4ec1fb1e5b4b9379be14
SHA1

cdfcde4ab8907b98d3266eb1f80afa43821fb764
SHA256

7139fbd600738d2f456c7f11ae105e45ab0bb6e14a473ae0e68391b8125da393
SHA512

8123f2ab10402f61238d4468c472d23d7cd9788e2f01f3ea8eaf08130a576dad534ebc38329009f54f60ac23b92a26bc792a79426a35c7ac8f964148fa5dd2ac

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.thedilleyo.com/kb8/

Decoy

goodsforbuilders.com

dafuhe.com

parapharmacity.com

montclairymcamotionvibe.com

jamesmccloudart.com

reignfallentertainment.com

couplesforequality.com

pitchbop.com

minipresspaperco.com

venoam.com

so-paradise.com

surgeryprovider.com

donaldscareers.com

disney-funlife.com

biosolo.net

themodsmith.net

grandhawaiian.com

11mountains.com

immatesearch.com

stochastichq.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/2044-8-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2044-9-0x000000000041EB70-mapping.dmp	formbook
behavioral1/memory/1388-19-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1612 cmd.exe

pid	process
1612	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO_JAN907#092941_BARYSLpdf.exePO_JAN907#092941_BARYSLpdf.exeNETSTAT.EXE

description	pid	process	target process
PID 528 set thread context of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 2044 set thread context of 1208	2044	PO_JAN907#092941_BARYSLpdf.exe	Explorer.EXE
PID 2044 set thread context of 1208	2044	PO_JAN907#092941_BARYSLpdf.exe	Explorer.EXE
PID 1388 set thread context of 1208	1388	NETSTAT.EXE	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

1388 NETSTAT.EXE

pid	process
1388	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

PO_JAN907#092941_BARYSLpdf.exeNETSTAT.EXE

pid	process
2044	PO_JAN907#092941_BARYSLpdf.exe
2044	PO_JAN907#092941_BARYSLpdf.exe
2044	PO_JAN907#092941_BARYSLpdf.exe
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE
1388	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

PO_JAN907#092941_BARYSLpdf.exeNETSTAT.EXE

pid	process
2044	PO_JAN907#092941_BARYSLpdf.exe
2044	PO_JAN907#092941_BARYSLpdf.exe
2044	PO_JAN907#092941_BARYSLpdf.exe
2044	PO_JAN907#092941_BARYSLpdf.exe
1388	NETSTAT.EXE
1388	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_JAN907#092941_BARYSLpdf.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 2044 PO_JAN907#092941_BARYSLpdf.exe
Token: SeDebugPrivilege 1388 NETSTAT.EXE
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2044	PO_JAN907#092941_BARYSLpdf.exe
Token: SeDebugPrivilege	1388	NETSTAT.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO_JAN907#092941_BARYSLpdf.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 528 wrote to memory of 2044	528	PO_JAN907#092941_BARYSLpdf.exe	PO_JAN907#092941_BARYSLpdf.exe
PID 1208 wrote to memory of 1388	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1388	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1388	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1388	1208	Explorer.EXE	NETSTAT.EXE
PID 1388 wrote to memory of 1612	1388	NETSTAT.EXE	cmd.exe
PID 1388 wrote to memory of 1612	1388	NETSTAT.EXE	cmd.exe
PID 1388 wrote to memory of 1612	1388	NETSTAT.EXE	cmd.exe
PID 1388 wrote to memory of 1612	1388	NETSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\PO_JAN907#092941_BARYSLpdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO_JAN907#092941_BARYSLpdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:528

C:\Users\Admin\AppData\Local\Temp\PO_JAN907#092941_BARYSLpdf.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2044

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO_JAN907#092941_BARYSLpdf.exe"
3⤵
- Deletes itself
PID:1612

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/528-3-0x0000000000A20000-0x0000000000A21000-memory.dmp

Filesize
4KB

Download
memory/528-5-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download
memory/528-6-0x0000000000430000-0x000000000043E000-memory.dmp

Filesize
56KB

Download
memory/528-7-0x0000000002370000-0x00000000023CF000-memory.dmp

Filesize
380KB

Download
memory/528-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1208-13-0x0000000004010000-0x00000000040D9000-memory.dmp

Filesize
804KB

Download
memory/1208-15-0x0000000004BB0000-0x0000000004CA2000-memory.dmp

Filesize
968KB

Download
memory/1388-16-0x0000000000000000-mapping.dmp

Download
memory/1388-18-0x0000000000880000-0x0000000000889000-memory.dmp

Filesize
36KB

Download
memory/1388-19-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1388-20-0x0000000002240000-0x0000000002543000-memory.dmp

Filesize
3.0MB

Download
memory/1388-21-0x0000000002100000-0x0000000002193000-memory.dmp

Filesize
588KB

Download
memory/1612-17-0x0000000000000000-mapping.dmp

Download
memory/2044-12-0x0000000000160000-0x0000000000174000-memory.dmp

Filesize
80KB

Download
memory/2044-11-0x0000000000B10000-0x0000000000E13000-memory.dmp

Filesize
3.0MB

Download
memory/2044-14-0x0000000000360000-0x0000000000374000-memory.dmp

Filesize
80KB

Download
memory/2044-9-0x000000000041EB70-mapping.dmp

Download
memory/2044-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads