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
behavioral2/memory/1772-150-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1772-176-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2864-221-0x00000000003D0000-0x00000000003FF000-memory.dmp	formbook
behavioral2/memory/2864-223-0x00000000003D0000-0x00000000003FF000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	Orden de compra del proveedor OC_No 1435 27-03-2023.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

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

description	pid	process	target process
PID 4976 set thread context of 1772	4976	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 1772 set thread context of 3196	1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	Explorer.EXE
PID 2864 set thread context of 3196	2864	msiexec.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

3052 schtasks.exe

pid	process
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

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

pid	process
2228	powershell.exe
4236	powershell.exe
4236	powershell.exe
2228	powershell.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe
2864	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3196 Explorer.EXE

pid	process
3196	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

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

pid	process
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
2864	msiexec.exe
2864	msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	2228	powershell.exe
Token: SeDebugPrivilege	4236	powershell.exe
Token: SeDebugPrivilege	1772	Orden de compra del proveedor OC_No 1435 27-03-2023.exe
Token: SeShutdownPrivilege	3196	Explorer.EXE
Token: SeCreatePagefilePrivilege	3196	Explorer.EXE
Token: SeShutdownPrivilege	3196	Explorer.EXE
Token: SeCreatePagefilePrivilege	3196	Explorer.EXE
Token: SeDebugPrivilege	2864	msiexec.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

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

description	pid	process	target process
PID 4976 wrote to memory of 4236	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 4236	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 4236	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 2228	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 2228	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 2228	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	powershell.exe
PID 4976 wrote to memory of 3052	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 4976 wrote to memory of 3052	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 4976 wrote to memory of 3052	4976	Orden de compra del proveedor OC_No 1435 27-03-2023.exe	schtasks.exe
PID 4976 wrote to memory of 1772	4976	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 4976 wrote to memory of 1772	4976	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 4976 wrote to memory of 1772	4976	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 4976 wrote to memory of 1772	4976	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 4976 wrote to memory of 1772	4976	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 4976 wrote to memory of 1772	4976	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 3196 wrote to memory of 2864	3196	Explorer.EXE	msiexec.exe
PID 3196 wrote to memory of 2864	3196	Explorer.EXE	msiexec.exe
PID 3196 wrote to memory of 2864	3196	Explorer.EXE	msiexec.exe
PID 2864 wrote to memory of 1428	2864	msiexec.exe	cmd.exe
PID 2864 wrote to memory of 1428	2864	msiexec.exe	cmd.exe
PID 2864 wrote to memory of 1428	2864	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3196

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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4976

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:4236

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:2228

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YCNgsiXL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp47D6.tmp"
3⤵
- Creates scheduled task(s)
PID:3052

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
PID:1772

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864

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"
3⤵
PID:1428

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
1201b583900d29a9f031c81534946276

SHA1
cd5d240e614d2bcd07e2f8021f2a4203defb59e5

SHA256
391399f853509e083ef3ef305282a7c0c7d08fee41313ec4a469a9b886f11d6b

SHA512
266a222b78dd9a97ac3f34d6537514de9c2c94ebe31f8978af3addd332e5dd27a3efcb68abfa6c4c3018d90835bc7c6b7aad1e4c0e51b3076008a715bbeee8e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cqzq4yj4.aq1.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp47D6.tmp
Filesize
1KB

MD5
c5dcfa26d18bdeb5b6a6263253165732

SHA1
ac9fb7e1ee616100087ce97f41a6ef6727a01cec

SHA256
54fb9535820865a8f30dc4cca0610d3855a8f3288e5d15e5cbf704b7587e631c

SHA512
a82151c70521d680e5be2e0b955b484a5bcf632a210b1bf794e1582ce13bacb0724bede8e418751bfc3f8634b3492ee7e81a4e817857362ef6dc3c5decf3d562

Download Submit
memory/1772-177-0x0000000001300000-0x0000000001314000-memory.dmp

Filesize
80KB

Download
memory/1772-150-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1772-176-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1772-175-0x00000000014F0000-0x000000000183A000-memory.dmp

Filesize
3.3MB

Download
memory/2228-207-0x0000000007360000-0x00000000073F6000-memory.dmp

Filesize
600KB

Download
memory/2228-204-0x0000000007720000-0x0000000007D9A000-memory.dmp

Filesize
6.5MB

Download
memory/2228-203-0x000000007F700000-0x000000007F710000-memory.dmp

Filesize
64KB

Download
memory/2228-149-0x0000000004A50000-0x0000000004A60000-memory.dmp

Filesize
64KB

Download
memory/2228-205-0x00000000070E0000-0x00000000070FA000-memory.dmp

Filesize
104KB

Download
memory/2228-146-0x0000000005090000-0x00000000056B8000-memory.dmp

Filesize
6.2MB

Download
memory/2228-201-0x0000000004A50000-0x0000000004A60000-memory.dmp

Filesize
64KB

Download
memory/2228-200-0x0000000006380000-0x000000000639E000-memory.dmp

Filesize
120KB

Download
memory/2228-181-0x00000000758A0000-0x00000000758EC000-memory.dmp

Filesize
304KB

Download
memory/2228-206-0x0000000007150000-0x000000000715A000-memory.dmp

Filesize
40KB

Download
memory/2228-210-0x0000000007400000-0x0000000007408000-memory.dmp

Filesize
32KB

Download
memory/2864-221-0x00000000003D0000-0x00000000003FF000-memory.dmp

Filesize
188KB

Download
memory/2864-222-0x0000000002560000-0x00000000028AA000-memory.dmp

Filesize
3.3MB

Download
memory/2864-225-0x0000000002480000-0x0000000002513000-memory.dmp

Filesize
588KB

Download
memory/2864-223-0x00000000003D0000-0x00000000003FF000-memory.dmp

Filesize
188KB

Download
memory/2864-216-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/2864-218-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/2864-220-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/3196-178-0x0000000007E00000-0x0000000007F7B000-memory.dmp

Filesize
1.5MB

Download
memory/3196-229-0x0000000008430000-0x0000000008555000-memory.dmp

Filesize
1.1MB

Download
memory/3196-227-0x0000000008430000-0x0000000008555000-memory.dmp

Filesize
1.1MB

Download
memory/3196-226-0x0000000008430000-0x0000000008555000-memory.dmp

Filesize
1.1MB

Download
memory/4236-148-0x0000000004B50000-0x0000000004B60000-memory.dmp

Filesize
64KB

Download
memory/4236-157-0x0000000005090000-0x00000000050B2000-memory.dmp

Filesize
136KB

Download
memory/4236-180-0x00000000758A0000-0x00000000758EC000-memory.dmp

Filesize
304KB

Download
memory/4236-179-0x0000000007010000-0x0000000007042000-memory.dmp

Filesize
200KB

Download
memory/4236-208-0x0000000007390000-0x000000000739E000-memory.dmp

Filesize
56KB

Download
memory/4236-209-0x00000000074A0000-0x00000000074BA000-memory.dmp

Filesize
104KB

Download
memory/4236-173-0x0000000005E70000-0x0000000005E8E000-memory.dmp

Filesize
120KB

Download
memory/4236-169-0x0000000005930000-0x0000000005996000-memory.dmp

Filesize
408KB

Download
memory/4236-164-0x00000000057C0000-0x0000000005826000-memory.dmp

Filesize
408KB

Download
memory/4236-202-0x0000000004B50000-0x0000000004B60000-memory.dmp

Filesize
64KB

Download
memory/4236-144-0x0000000002520000-0x0000000002556000-memory.dmp

Filesize
216KB

Download
memory/4236-147-0x0000000004B50000-0x0000000004B60000-memory.dmp

Filesize
64KB

Download
memory/4976-133-0x00000000001C0000-0x0000000000294000-memory.dmp

Filesize
848KB

Download
memory/4976-139-0x0000000007E20000-0x0000000007EBC000-memory.dmp

Filesize
624KB

Download
memory/4976-138-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/4976-137-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/4976-136-0x0000000004B20000-0x0000000004B2A000-memory.dmp

Filesize
40KB

Download
memory/4976-135-0x0000000004B40000-0x0000000004BD2000-memory.dmp

Filesize
584KB

Download
memory/4976-134-0x0000000005050000-0x00000000055F4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads