formbook | b3811fa28d3e22cf5029476f6870c54e7fcd4d68da1342bb199ca6d41ed9ff56

General

Target

Orden de compra del proveedor OC_No 1435 27-03-2023.exe
Size

822KB
MD5

91da3743bb05e6744e50fe749f5a9cc6
SHA1

fbb00ec09354ded8bf1b7f18f2e9cb2ef0e3d3b3
SHA256

b3811fa28d3e22cf5029476f6870c54e7fcd4d68da1342bb199ca6d41ed9ff56
SHA512

08bb7e82f83aa4d5146838b8cdc2c40382656c8db8775792d850b3bf5426f53a4e5b9e3420c16e4b4140767a030e0eab9d3339f5182f6390def143d470f3f277
SSDEEP

12288:LUJB0Oq8p2ZEtCgO27/mW9XqUjX5OFUuOWGt0p4VedclBeHlOrh1CuQvpAoJhZ:AZpTtV7fjc36veA1Gx9D

Score

10^/10

formbook jr22 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

jr22

Decoy

941zhe.com

lunarportal.space

xn--osmaniyeiek-t9ab.online

trejoscar.com

nrnursery.com

quizcannot.cfd

seedstockersthailand.com

watsonwindow.com

wjfholdings.com

weziclondon.com

naruot.xyz

yeji.plus

classicmenstore.com

oharatravel.com

therapyplankits.com

keviegreshonpt.com

qdlyner.com

seithupaarungal.com

casinorates.online

8ug4as.icu

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/1088-76-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1088-81-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1088-89-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/948-91-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1028 cmd.exe

pid	process
1028	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Orden de compra del proveedor OC_No 1435 27-03-2023.exeOrden de compra del proveedor OC_No 1435 27-03-2023.execolorcpl.exe

description	pid	process	target process
PID 1724 set thread context of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1088 set thread context of 1236	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Explorer.EXE
PID 1088 set thread context of 1236	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Explorer.EXE
PID 948 set thread context of 1236	948	colorcpl.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

1736 schtasks.exe

pid	process
1736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

Orden de compra del proveedor OC_No 1435 27-03-2023.exepowershell.exepowershell.execolorcpl.exe

pid	process
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1696	powershell.exe
1732	powershell.exe
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe
948	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE

pid	process
1236	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Orden de compra del proveedor OC_No 1435 27-03-2023.execolorcpl.exe

pid	process
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
948	colorcpl.exe
948	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exeOrden de compra del proveedor OC_No 1435 27-03-2023.execolorcpl.exe

description	pid	process
Token: SeDebugPrivilege	1696	powershell.exe
Token: SeDebugPrivilege	1732	powershell.exe
Token: SeDebugPrivilege	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
Token: SeDebugPrivilege	948	colorcpl.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

Orden de compra del proveedor OC_No 1435 27-03-2023.exeOrden de compra del proveedor OC_No 1435 27-03-2023.execolorcpl.exe

description	pid	process	target process
PID 1724 wrote to memory of 1696	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1696	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1696	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1696	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1732	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1732	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1732	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1732	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 1724 wrote to memory of 1736	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 1724 wrote to memory of 1736	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 1724 wrote to memory of 1736	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 1724 wrote to memory of 1736	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1724 wrote to memory of 1088	1724	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
PID 1088 wrote to memory of 948	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	colorcpl.exe
PID 1088 wrote to memory of 948	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	colorcpl.exe
PID 1088 wrote to memory of 948	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	colorcpl.exe
PID 1088 wrote to memory of 948	1088	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	colorcpl.exe
PID 948 wrote to memory of 1028	948	colorcpl.exe	cmd.exe
PID 948 wrote to memory of 1028	948	colorcpl.exe	cmd.exe
PID 948 wrote to memory of 1028	948	colorcpl.exe	cmd.exe
PID 948 wrote to memory of 1028	948	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1236

C:\Users\Admin\AppData\Local\Temp\Orden de compra del proveedor OC_No 1435 27-03-2023.exe
"C:\Users\Admin\AppData\Local\Temp\Orden de compra del proveedor OC_No 1435 27-03-2023.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724

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\Orden de compra del proveedor OC_No 1435 27-03-2023.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1696

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YCNgsiXL.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YCNgsiXL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEF4F.tmp"
3⤵
- Creates scheduled task(s)
PID:1736

C:\Users\Admin\AppData\Local\Temp\Orden de compra del proveedor OC_No 1435 27-03-2023.exe
"C:\Users\Admin\AppData\Local\Temp\Orden de compra del proveedor OC_No 1435 27-03-2023.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Orden de compra del proveedor OC_No 1435 27-03-2023.exe"
5⤵
- Deletes itself
PID:1028

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1004

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:696

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1528

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1412

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1388

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1484

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1968

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\tmpEF4F.tmp
Filesize
1KB

MD5
caa9d361b5312dfb5fb8a1dda08c147f

SHA1
4070d956ab4b1053d5792478f41ebba4fe52ace8

SHA256
c92c06ce35abfaffdf1bc9f3beba82587050f68d274b1c99c3002afc81be8df7

SHA512
aad4d06fd13f8ee7f5181a6a52c3ec36024298029f891d68162f8133121f836073d5940c25b63d5ee9466dc2c3aef632db0a54e00c7ce7b722e242de8efede53

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\I7LTCI8O8QS0KRN20R9N.temp
Filesize
7KB

MD5
2df9384a65630c2c3f113c61018b613b

SHA1
5cbaeaf8e2120eae11a9351513a0d483550806a1

SHA256
ada5cd6a9b3b66c0d7c294678dbe0aab7eb28e44598f062995e0ae425b4b542b

SHA512
ceb20c0791958dd70b110f3adbefe8aac8d1884449cb37cac69894aade9b499199dacf8509b7bb681392a270acf98e212e1508772860f10b1d5c98a625694364

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
2df9384a65630c2c3f113c61018b613b

SHA1
5cbaeaf8e2120eae11a9351513a0d483550806a1

SHA256
ada5cd6a9b3b66c0d7c294678dbe0aab7eb28e44598f062995e0ae425b4b542b

SHA512
ceb20c0791958dd70b110f3adbefe8aac8d1884449cb37cac69894aade9b499199dacf8509b7bb681392a270acf98e212e1508772860f10b1d5c98a625694364

Download Submit
memory/948-90-0x0000000000F10000-0x0000000000F28000-memory.dmp

Filesize
96KB

Download
memory/948-94-0x0000000000960000-0x00000000009F3000-memory.dmp

Filesize
588KB

Download
memory/948-88-0x0000000000F10000-0x0000000000F28000-memory.dmp

Filesize
96KB

Download
memory/948-91-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/948-92-0x0000000000B40000-0x0000000000E43000-memory.dmp

Filesize
3.0MB

Download
memory/1088-73-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1088-89-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1088-81-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1088-74-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1088-75-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1088-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1088-86-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1088-83-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/1088-82-0x0000000000A80000-0x0000000000D83000-memory.dmp

Filesize
3.0MB

Download
memory/1236-87-0x0000000004D60000-0x0000000004E1A000-memory.dmp

Filesize
744KB

Download
memory/1236-84-0x00000000064C0000-0x00000000065A3000-memory.dmp

Filesize
908KB

Download
memory/1236-99-0x0000000004890000-0x000000000493F000-memory.dmp

Filesize
700KB

Download
memory/1236-97-0x0000000004890000-0x000000000493F000-memory.dmp

Filesize
700KB

Download
memory/1236-95-0x0000000004890000-0x000000000493F000-memory.dmp

Filesize
700KB

Download
memory/1696-80-0x0000000002380000-0x00000000023C0000-memory.dmp

Filesize
256KB

Download
memory/1724-58-0x0000000000670000-0x000000000067C000-memory.dmp

Filesize
48KB

Download
memory/1724-59-0x0000000005140000-0x00000000051F0000-memory.dmp

Filesize
704KB

Download
memory/1724-57-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1724-56-0x0000000000640000-0x0000000000660000-memory.dmp

Filesize
128KB

Download
memory/1724-55-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1724-72-0x0000000005F50000-0x0000000005F88000-memory.dmp

Filesize
224KB

Download
memory/1724-54-0x00000000009A0000-0x0000000000A74000-memory.dmp

Filesize
848KB

Download
memory/1732-79-0x0000000002730000-0x0000000002770000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads