formbook | c7b835a38f13c18350ba953a8f57f8c90a237804c377ba32d6fd212daa08e98c

General

Target

PI.exe
Size

229KB
MD5

faa85d608853f8f467909b19eac68daa
SHA1

2eafec60349d9a3cefd12e031f2597ca21c279b3
SHA256

c7b835a38f13c18350ba953a8f57f8c90a237804c377ba32d6fd212daa08e98c
SHA512

c3ccd2494c336d7479ec4cd70dbe61900c3ff2c9882fee7f84314151e2682ef2b335da85e3df175bb04b39a4148f376a4f279ae9009a961ee66ba60b51f9eb00

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.knighttechinca.com/dxe/

Decoy

sardarfarm.com

959tremont.com

privat-livecam.net

ansel-homebakery.com

joysupermarket.com

peninsulamatchmakers.net

northsytyle.com

radioconexaoubermusic.com

relocatingrealtor.com

desyrnan.com

onlinehoortoestel.online

enpointe.online

rvvikings.com

paulpoirier.com

shitarpa.net

kerneis.net

rokitreach.com

essentiallygaia.com

prestiged.net

fuerzaagavera.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/268-64-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1588-73-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

796 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

PI.exe

pid process

1840 PI.exe

pid	process
796	cmd.exe

pid	process
1840	PI.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PI.exePI.exemsdt.exe

description	pid	process	target process
PID 1840 set thread context of 268	1840	PI.exe	PI.exe
PID 268 set thread context of 1212	268	PI.exe	Explorer.EXE
PID 268 set thread context of 1212	268	PI.exe	Explorer.EXE
PID 1588 set thread context of 1212	1588	msdt.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

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

PI.exemsdt.exe

pid	process
268	PI.exe
268	PI.exe
268	PI.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe
1588	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PI.exePI.exemsdt.exe

pid process

1840 PI.exe
268 PI.exe
268 PI.exe
268 PI.exe
268 PI.exe
1588 msdt.exe
1588 msdt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PI.exemsdt.exe

description pid process

Token: SeDebugPrivilege 268 PI.exe
Token: SeDebugPrivilege 1588 msdt.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE

pid	process
1212	Explorer.EXE

pid	process
1840	PI.exe
268	PI.exe
268	PI.exe
268	PI.exe
268	PI.exe
1588	msdt.exe
1588	msdt.exe

description	pid	process
Token: SeDebugPrivilege	268	PI.exe
Token: SeDebugPrivilege	1588	msdt.exe

pid	process
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PI.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 1840 wrote to memory of 268	1840	PI.exe	PI.exe
PID 1840 wrote to memory of 268	1840	PI.exe	PI.exe
PID 1840 wrote to memory of 268	1840	PI.exe	PI.exe
PID 1840 wrote to memory of 268	1840	PI.exe	PI.exe
PID 1840 wrote to memory of 268	1840	PI.exe	PI.exe
PID 1212 wrote to memory of 1588	1212	Explorer.EXE	msdt.exe
PID 1212 wrote to memory of 1588	1212	Explorer.EXE	msdt.exe
PID 1212 wrote to memory of 1588	1212	Explorer.EXE	msdt.exe
PID 1212 wrote to memory of 1588	1212	Explorer.EXE	msdt.exe
PID 1588 wrote to memory of 796	1588	msdt.exe	cmd.exe
PID 1588 wrote to memory of 796	1588	msdt.exe	cmd.exe
PID 1588 wrote to memory of 796	1588	msdt.exe	cmd.exe
PID 1588 wrote to memory of 796	1588	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\PI.exe
"C:\Users\Admin\AppData\Local\Temp\PI.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1840

C:\Users\Admin\AppData\Local\Temp\PI.exe
"C:\Users\Admin\AppData\Local\Temp\PI.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:268

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PI.exe"
3⤵
- Deletes itself
PID:796

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsd849D.tmp\al7n3.dll
MD5
d7b3e7bbb1ba396ae0a092b5dc4b9ed4

SHA1
1af08aca3583c37cd83c23c4b1f0eafb477c48b0

SHA256
a4361c7bf7b9859df0b622ee7c421c216cc036b910e70861f107d487e257c162

SHA512
123138e9a75bbe78e47bef5fb4e6f5e024efe094bf3fce13c3919c916dce9e8382e212fa83a97604afeb6c161205df5f8d83e0536ada82cffa7f9866d1545ded

Download Submit
memory/268-68-0x0000000000390000-0x00000000003A4000-memory.dmp

Filesize
80KB

Download
memory/268-62-0x000000000041EAF0-mapping.dmp

Download
memory/268-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/268-65-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/268-66-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/796-75-0x0000000000000000-mapping.dmp

Download
memory/1212-67-0x0000000004F40000-0x00000000050B2000-memory.dmp

Filesize
1.4MB

Download
memory/1212-69-0x0000000006E90000-0x000000000703D000-memory.dmp

Filesize
1.7MB

Download
memory/1212-77-0x00000000080B0000-0x000000000822B000-memory.dmp

Filesize
1.5MB

Download
memory/1588-70-0x0000000000000000-mapping.dmp

Download
memory/1588-72-0x0000000000D60000-0x0000000000E54000-memory.dmp

Filesize
976KB

Download
memory/1588-73-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1588-74-0x00000000023F0000-0x00000000026F3000-memory.dmp

Filesize
3.0MB

Download
memory/1588-76-0x0000000000B50000-0x0000000000BE3000-memory.dmp

Filesize
588KB

Download
memory/1840-60-0x0000000074D91000-0x0000000074D93000-memory.dmp

Filesize
8KB

Download
memory/1840-63-0x00000000005C0000-0x00000000005C2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads