formbook | 14a0af77c8fab65395925348cb39c058dd0e619e33055f6a3f895c295aaa6783

General

Target

Shipping-Docs.exe
Size

501KB
MD5

c865088690870930ec48ae54209e37a3
SHA1

b6bfc53eb8577cfafe3ef5670faf56e6b2f10a3c
SHA256

14a0af77c8fab65395925348cb39c058dd0e619e33055f6a3f895c295aaa6783
SHA512

d233fb9735eca4d18dc4a2642d2fcbeb386a5d5ffd480aa6e09a7b29567417b1ecf588dc004975c97b08dd3cd05dc7c48105b87804a8e37c8a1af649b95f653f

Score

10^/10

formbook xloader gfv7 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

gfv7

Decoy

hd4AZDZ3XeSkZ9w0NRn2+JU=

6iAxmGKdumxFEgwp

jM6QcxNUSeCKaUdvvh3g9mffhosQ

d4CC0LS0DjTJS8FdXqd3soM=

S1LPlXEIJY52Og==

doeO7AimsF0NEvFgnIV5

W2TlzH/byHtUU3B7tw==

Y2RAbyZjex2qj6GQv4Q=

ftoOsCpZdfmALQ==

4kqL8v/6rDj8Ohs/wAjkb0gD5Gfiww==

8mVs/AkvwLnIWp4=

yfqAazgHioT8b9yHSKpLDtgY

EyWD5F+Wu3L0xq/VJXgdlnFvBDdUz5WM

jn9ty+pdRNdtcDhJ5k8nwZofm4EJ

s9XVNv4/aRDBUx4w

+vHFE7Fw1rnIWp4=

wC395Yvi6G/3yoWRGW1USxzshi3Dyw==

jcbufIN91gHAUK1RYUMYIdyqpDlUz5WM

iIyoIvZNXwPNmBlBxGk6+A==

C/hTD8h/KWLiMW4Mt/joXyz23Q==

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1984-62-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1984-63-0x000000000041F810-mapping.dmp	xloader
behavioral1/memory/1984-65-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1040-72-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
behavioral1/memory/1040-77-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	control.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XTD8FTBPKB = "C:\\Program Files (x86)\\Bnrxh\\helpqjvh.exe"	control.exe

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:

Shipping-Docs.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	Shipping-Docs.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1692 cmd.exe

pid	process
1692	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping-Docs.exeShipping-Docs.execontrol.exe

description	pid	process	target process
PID 1964 set thread context of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1984 set thread context of 1304	1984	Shipping-Docs.exe	Explorer.EXE
PID 1040 set thread context of 1304	1040	control.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

control.exe

description ioc process

File opened for modification C:\Program Files (x86)\Bnrxh\helpqjvh.exe control.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Bnrxh\helpqjvh.exe	control.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

Shipping-Docs.execontrol.exe

pid	process
1984	Shipping-Docs.exe
1984	Shipping-Docs.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe
1040	control.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Shipping-Docs.execontrol.exe

pid process

1984 Shipping-Docs.exe
1984 Shipping-Docs.exe
1984 Shipping-Docs.exe
1040 control.exe
1040 control.exe
1040 control.exe
1040 control.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Shipping-Docs.execontrol.exe

description pid process

Token: SeDebugPrivilege 1984 Shipping-Docs.exe
Token: SeDebugPrivilege 1040 control.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1304 Explorer.EXE
1304 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1304 Explorer.EXE
1304 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1984	Shipping-Docs.exe
Token: SeDebugPrivilege	1040	control.exe

pid	process
1304	Explorer.EXE
1304	Explorer.EXE

pid	process
1304	Explorer.EXE
1304	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Shipping-Docs.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1964 wrote to memory of 1984	1964	Shipping-Docs.exe	Shipping-Docs.exe
PID 1304 wrote to memory of 1040	1304	Explorer.EXE	control.exe
PID 1304 wrote to memory of 1040	1304	Explorer.EXE	control.exe
PID 1304 wrote to memory of 1040	1304	Explorer.EXE	control.exe
PID 1304 wrote to memory of 1040	1304	Explorer.EXE	control.exe
PID 1040 wrote to memory of 1692	1040	control.exe	cmd.exe
PID 1040 wrote to memory of 1692	1040	control.exe	cmd.exe
PID 1040 wrote to memory of 1692	1040	control.exe	cmd.exe
PID 1040 wrote to memory of 1692	1040	control.exe	cmd.exe
PID 1040 wrote to memory of 580	1040	control.exe	Firefox.exe
PID 1040 wrote to memory of 580	1040	control.exe	Firefox.exe
PID 1040 wrote to memory of 580	1040	control.exe	Firefox.exe
PID 1040 wrote to memory of 580	1040	control.exe	Firefox.exe
PID 1040 wrote to memory of 580	1040	control.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1304

C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1984

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe"
3⤵
- Deletes itself
PID:1692

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:580

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1040-72-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1040-71-0x0000000000290000-0x00000000002AF000-memory.dmp

Filesize
124KB

Download
memory/1040-69-0x0000000000000000-mapping.dmp

Download
memory/1040-74-0x0000000002040000-0x0000000002343000-memory.dmp

Filesize
3.0MB

Download
memory/1040-75-0x0000000001D70000-0x0000000001E00000-memory.dmp

Filesize
576KB

Download
memory/1040-77-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1304-78-0x0000000004CA0000-0x0000000004D5A000-memory.dmp

Filesize
744KB

Download
memory/1304-76-0x0000000004CA0000-0x0000000004D5A000-memory.dmp

Filesize
744KB

Download
memory/1304-68-0x0000000004BE0000-0x0000000004C9D000-memory.dmp

Filesize
756KB

Download
memory/1692-73-0x0000000000000000-mapping.dmp

Download
memory/1964-54-0x0000000000D80000-0x0000000000E04000-memory.dmp

Filesize
528KB

Download
memory/1964-58-0x00000000042F0000-0x0000000004322000-memory.dmp

Filesize
200KB

Download
memory/1964-57-0x00000000050C0000-0x0000000005140000-memory.dmp

Filesize
512KB

Download
memory/1964-56-0x0000000000A70000-0x0000000000A7A000-memory.dmp

Filesize
40KB

Download
memory/1964-55-0x0000000075401000-0x0000000075403000-memory.dmp

Filesize
8KB

Download
memory/1984-59-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1984-67-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/1984-66-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/1984-65-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1984-63-0x000000000041F810-mapping.dmp

Download
memory/1984-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1984-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads