formbook | 01c5ac824171a164473d92187f8031f2bc7103397fe534f56771d8e9589445e0

General

Target

0O9BJfVJi6fEMoS.exe
Size

797KB
MD5

18ec78e09155c046a203fb4dcbc3593f
SHA1

40e67eef7c001a8752763616fc9a58170721c27a
SHA256

01c5ac824171a164473d92187f8031f2bc7103397fe534f56771d8e9589445e0
SHA512

28801c6b546515f4fb67f199f70b160dffb41434bcb465f92d3f20dbad698194f162b443571ea267a1dd7c7ef0bcaf4bb82116c37d3a83433f9d3de28083234e

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.besteprobioticakopen.online/uszn/

Decoy

animegriptape.com

pcpnetworks.com

putupmybabyforadoption.com

xn--jvrr98g37n88d.com

fertinvitro.doctor

undonethread.com

avoleague.com

sissysundays.com

guilhermeoliveiro.site

catholicon-bespeckle.info

mardesuenosfundacion.com

songkhoe24.site

shoecityindia.com

smallbathroomdecor.info

tskusa.com

prairiespringsllc.com

kegncoffee.com

clicklounge.xyz

catholicendoflifeplanning.com

steelobzee.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2172-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2172-13-0x000000000041D0F0-mapping.dmp	xloader
behavioral2/memory/1324-24-0x0000000004CB0000-0x0000000004CD9000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

0O9BJfVJi6fEMoS.exe0O9BJfVJi6fEMoS.exechkdsk.exe

description	pid	process	target process
PID 728 set thread context of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 2172 set thread context of 2968	2172	0O9BJfVJi6fEMoS.exe	Explorer.EXE
PID 2172 set thread context of 2968	2172	0O9BJfVJi6fEMoS.exe	Explorer.EXE
PID 1324 set thread context of 2968	1324	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

Processes:

0O9BJfVJi6fEMoS.exe0O9BJfVJi6fEMoS.exechkdsk.exe

pid	process
728	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe
1324	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

0O9BJfVJi6fEMoS.exechkdsk.exe

pid process

2172 0O9BJfVJi6fEMoS.exe
2172 0O9BJfVJi6fEMoS.exe
2172 0O9BJfVJi6fEMoS.exe
2172 0O9BJfVJi6fEMoS.exe
1324 chkdsk.exe
1324 chkdsk.exe

pid	process
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
2172	0O9BJfVJi6fEMoS.exe
1324	chkdsk.exe
1324	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

0O9BJfVJi6fEMoS.exe0O9BJfVJi6fEMoS.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	728	0O9BJfVJi6fEMoS.exe
Token: SeDebugPrivilege	2172	0O9BJfVJi6fEMoS.exe
Token: SeDebugPrivilege	1324	chkdsk.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2968 Explorer.EXE

pid	process
2968	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

0O9BJfVJi6fEMoS.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 728 wrote to memory of 2172	728	0O9BJfVJi6fEMoS.exe	0O9BJfVJi6fEMoS.exe
PID 2968 wrote to memory of 1324	2968	Explorer.EXE	chkdsk.exe
PID 2968 wrote to memory of 1324	2968	Explorer.EXE	chkdsk.exe
PID 2968 wrote to memory of 1324	2968	Explorer.EXE	chkdsk.exe
PID 1324 wrote to memory of 3824	1324	chkdsk.exe	cmd.exe
PID 1324 wrote to memory of 3824	1324	chkdsk.exe	cmd.exe
PID 1324 wrote to memory of 3824	1324	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2968

C:\Users\Admin\AppData\Local\Temp\0O9BJfVJi6fEMoS.exe
"C:\Users\Admin\AppData\Local\Temp\0O9BJfVJi6fEMoS.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:728

C:\Users\Admin\AppData\Local\Temp\0O9BJfVJi6fEMoS.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2172

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\0O9BJfVJi6fEMoS.exe"
3⤵
PID:3824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/728-9-0x0000000008700000-0x0000000008701000-memory.dmp

Filesize
4KB

Download
memory/728-11-0x0000000008690000-0x00000000086E6000-memory.dmp

Filesize
344KB

Download
memory/728-5-0x0000000005540000-0x0000000005541000-memory.dmp

Filesize
4KB

Download
memory/728-6-0x00000000050E0000-0x00000000050E1000-memory.dmp

Filesize
4KB

Download
memory/728-7-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/728-8-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/728-3-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/728-10-0x0000000008660000-0x000000000866B000-memory.dmp

Filesize
44KB

Download
memory/728-2-0x00000000730E0000-0x00000000737CE000-memory.dmp

Filesize
6.9MB

Download
memory/1324-26-0x00000000058F0000-0x000000000597F000-memory.dmp

Filesize
572KB

Download
memory/1324-21-0x0000000000000000-mapping.dmp

Download
memory/1324-25-0x00000000055D0000-0x00000000058F0000-memory.dmp

Filesize
3.1MB

Download
memory/1324-23-0x0000000000C20000-0x0000000000C2A000-memory.dmp

Filesize
40KB

Download
memory/1324-24-0x0000000004CB0000-0x0000000004CD9000-memory.dmp

Filesize
164KB

Download
memory/2172-13-0x000000000041D0F0-mapping.dmp

Download
memory/2172-19-0x0000000001520000-0x0000000001530000-memory.dmp

Filesize
64KB

Download
memory/2172-16-0x00000000015D0000-0x00000000018F0000-memory.dmp

Filesize
3.1MB

Download
memory/2172-15-0x00000000014E0000-0x00000000014F0000-memory.dmp

Filesize
64KB

Download
memory/2172-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2968-20-0x0000000005C20000-0x0000000005D0E000-memory.dmp

Filesize
952KB

Download
memory/2968-18-0x0000000005AC0000-0x0000000005C14000-memory.dmp

Filesize
1.3MB

Download
memory/2968-27-0x0000000005D10000-0x0000000005E5B000-memory.dmp

Filesize
1.3MB

Download
memory/3824-22-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads