formbook | 6f8594f486bb2feba0aac43986145d67e30a9280ae4a6a06ca1175d83099d286

General

Target

orden de compra.exe
Size

380KB
MD5

2a30abd4d6db32bfc49a069c56ceb45c
SHA1

dc1411169ccfac189b4370ce8342779051a65753
SHA256

2f9d83d844287396dcaf52b5c15c1dacc92bc4ae2e2777d24c8d09465037ace3
SHA512

fa5110812d55c02e597b4ec890b6f40bcb23e66ecb79189f4d0e461cb87c40f4fb3a36cf6f3edf47b9c4ab9b784702751338399a5cfe14e9bd31ba3b8917403f

Score

10^/10

formbook kvsz rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kvsz

Decoy

okashyns.com

sbsgamedaejeon-two.com

drb77.com

top5dating.com

websprings.online

voizers.com

zenith.site

lahistoriade.com

qv85.com

armandonieto.com

priestvedic.com

jessandjeff.net

magic-desktop.com

jitaji.com

ldmeili.com

yuwanqingmy.com

buzhouorg.com

chaiseloungereviews.com

m2g8way.com

freespin-support.com

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/1232-64-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1232-65-0x000000000041ECA0-mapping.dmp	formbook
behavioral1/memory/1232-67-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1708-78-0x00000000000C0000-0x00000000000EE000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

orden de compra.exeRegSvcs.exeexplorer.exe

description	pid	process	target process
PID 1308 set thread context of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1232 set thread context of 1396	1232	RegSvcs.exe	Explorer.EXE
PID 1232 set thread context of 1396	1232	RegSvcs.exe	Explorer.EXE
PID 1708 set thread context of 1396	1708	explorer.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

1612 schtasks.exe

pid	process
1612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

orden de compra.exeRegSvcs.exeexplorer.exe

pid	process
1308	orden de compra.exe
1308	orden de compra.exe
1308	orden de compra.exe
1232	RegSvcs.exe
1232	RegSvcs.exe
1232	RegSvcs.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe
1708	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

RegSvcs.exeexplorer.exe

pid process

1232 RegSvcs.exe
1232 RegSvcs.exe
1232 RegSvcs.exe
1232 RegSvcs.exe
1708 explorer.exe
1708 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

orden de compra.exeRegSvcs.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 1308 orden de compra.exe
Token: SeDebugPrivilege 1232 RegSvcs.exe
Token: SeDebugPrivilege 1708 explorer.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1396 Explorer.EXE
1396 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1396 Explorer.EXE
1396 Explorer.EXE

pid	process
1232	RegSvcs.exe
1232	RegSvcs.exe
1232	RegSvcs.exe
1232	RegSvcs.exe
1708	explorer.exe
1708	explorer.exe

description	pid	process
Token: SeDebugPrivilege	1308	orden de compra.exe
Token: SeDebugPrivilege	1232	RegSvcs.exe
Token: SeDebugPrivilege	1708	explorer.exe

pid	process
1396	Explorer.EXE
1396	Explorer.EXE

pid	process
1396	Explorer.EXE
1396	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

orden de compra.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1308 wrote to memory of 1612	1308	orden de compra.exe	schtasks.exe
PID 1308 wrote to memory of 1612	1308	orden de compra.exe	schtasks.exe
PID 1308 wrote to memory of 1612	1308	orden de compra.exe	schtasks.exe
PID 1308 wrote to memory of 1612	1308	orden de compra.exe	schtasks.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1308 wrote to memory of 1232	1308	orden de compra.exe	RegSvcs.exe
PID 1396 wrote to memory of 1708	1396	Explorer.EXE	explorer.exe
PID 1396 wrote to memory of 1708	1396	Explorer.EXE	explorer.exe
PID 1396 wrote to memory of 1708	1396	Explorer.EXE	explorer.exe
PID 1396 wrote to memory of 1708	1396	Explorer.EXE	explorer.exe
PID 1708 wrote to memory of 1144	1708	explorer.exe	cmd.exe
PID 1708 wrote to memory of 1144	1708	explorer.exe	cmd.exe
PID 1708 wrote to memory of 1144	1708	explorer.exe	cmd.exe
PID 1708 wrote to memory of 1144	1708	explorer.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:1396

C:\Users\Admin\AppData\Local\Temp\orden de compra.exe
"C:\Users\Admin\AppData\Local\Temp\orden de compra.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1308

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\soPSGUbyne" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD318.tmp"
3⤵
- Creates scheduled task(s)
PID:1612

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1232

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1144

Network

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\tmpD318.tmp
Filesize
1KB

MD5
e76c1a99a732cdca67d0b8c79e50f4ba

SHA1
3785520d89f5a47010131aa800fde48de8bf74dd

SHA256
737e82eab061c84503fc12dcc7381240c2aa28636262d51e1206a61361aab52b

SHA512
94214aa46f926568f04e7050209c0b0e5925a32a6ddf7ae0abc68c188c999033d1b6a6cd3ea6c44f74ecc8b4adb075ce1c0203d237e269b6a53f00e8f28c3eab

Download Submit
memory/1144-79-0x0000000000000000-mapping.dmp

Download
memory/1232-68-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/1232-72-0x0000000000370000-0x0000000000384000-memory.dmp

Filesize
80KB

Download
memory/1232-69-0x00000000002A0000-0x00000000002B4000-memory.dmp

Filesize
80KB

Download
memory/1232-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1232-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1232-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1232-65-0x000000000041ECA0-mapping.dmp

Download
memory/1232-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1308-54-0x00000000001F0000-0x0000000000256000-memory.dmp

Filesize
408KB

Download
memory/1308-56-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/1308-55-0x0000000075261000-0x0000000075263000-memory.dmp

Filesize
8KB

Download
memory/1308-58-0x00000000006A0000-0x00000000006D4000-memory.dmp

Filesize
208KB

Download
memory/1308-57-0x00000000003C0000-0x000000000041A000-memory.dmp

Filesize
360KB

Download
memory/1396-82-0x0000000006910000-0x0000000006A12000-memory.dmp

Filesize
1.0MB

Download
memory/1396-73-0x00000000072B0000-0x000000000744B000-memory.dmp

Filesize
1.6MB

Download
memory/1396-70-0x0000000007110000-0x00000000072AD000-memory.dmp

Filesize
1.6MB

Download
memory/1612-59-0x0000000000000000-mapping.dmp

Download
memory/1708-74-0x0000000000000000-mapping.dmp

Download
memory/1708-76-0x0000000074C41000-0x0000000074C43000-memory.dmp

Filesize
8KB

Download
memory/1708-77-0x0000000000C90000-0x0000000000F11000-memory.dmp

Filesize
2.5MB

Download
memory/1708-78-0x00000000000C0000-0x00000000000EE000-memory.dmp

Filesize
184KB

Download
memory/1708-80-0x0000000002320000-0x0000000002623000-memory.dmp

Filesize
3.0MB

Download
memory/1708-81-0x0000000000940000-0x00000000009D3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads