formbook | 10d1e607e170563551b4dc8ce160b907067143b8222418cab17620481c3471c9

General

Target

dir2.exe
Size

1.5MB
MD5

ac44dce1ac1b90aec13f71bed7a27f14
SHA1

baadfc03a182da09e604235679cdde0feae32e28
SHA256

10d1e607e170563551b4dc8ce160b907067143b8222418cab17620481c3471c9
SHA512

435e10cd48ee663a28912aeb8dc13fb9cb09ee86a92113f2d88f75548b969378881de60eaf72e694f3c49db1cc040c1fa0aea8f8fceeb05cb492c32d0a2ad731

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.rizrvd.com/bw82/

Decoy

fundamentaliemef.com

gallerybrows.com

leadeligey.com

octoberx2.online

climaxnovels.com

gdsjgf.com

curateherstories.com

blacksailus.com

yjpps.com

gmobilet.com

fcoins.club

foreverlive2027.com

healthyfifties.com

wmarquezy.com

housebulb.com

thebabyfriendly.com

primajayaintiperkasa.com

learnplaychess.com

chrisbubser.digital

xn--avenr-wsa.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
behavioral1/memory/1936-8-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1936-9-0x000000000041CFF0-mapping.dmp	xloader
behavioral1/memory/292-16-0x00000000000C0000-0x00000000000E8000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

304 cmd.exe

pid	process
304	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dir2.exedir2.exechkdsk.exe

description	pid	process	target process
PID 2004 set thread context of 1936	2004	dir2.exe	dir2.exe
PID 1936 set thread context of 1304	1936	dir2.exe	Explorer.EXE
PID 292 set thread context of 1304	292	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 12 IoCs

Processes:

dir2.exechkdsk.exe

pid	process
1936	dir2.exe
1936	dir2.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe
292	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

dir2.exechkdsk.exe

pid process

1936 dir2.exe
1936 dir2.exe
1936 dir2.exe
292 chkdsk.exe
292 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dir2.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1936 dir2.exe
Token: SeDebugPrivilege 292 chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1936	dir2.exe
Token: SeDebugPrivilege	292	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

dir2.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 2004 wrote to memory of 1936	2004	dir2.exe	dir2.exe
PID 1304 wrote to memory of 292	1304	Explorer.EXE	chkdsk.exe
PID 1304 wrote to memory of 292	1304	Explorer.EXE	chkdsk.exe
PID 1304 wrote to memory of 292	1304	Explorer.EXE	chkdsk.exe
PID 1304 wrote to memory of 292	1304	Explorer.EXE	chkdsk.exe
PID 292 wrote to memory of 304	292	chkdsk.exe	cmd.exe
PID 292 wrote to memory of 304	292	chkdsk.exe	cmd.exe
PID 292 wrote to memory of 304	292	chkdsk.exe	cmd.exe
PID 292 wrote to memory of 304	292	chkdsk.exe	cmd.exe

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

C:\Users\Admin\AppData\Local\Temp\dir2.exe
"C:\Users\Admin\AppData\Local\Temp\dir2.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2004

C:\Users\Admin\AppData\Local\Temp\dir2.exe
"C:\Users\Admin\AppData\Local\Temp\dir2.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1936

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:292

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\dir2.exe"
3⤵
- Deletes itself
PID:304

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/292-20-0x00000000022E0000-0x000000000236F000-memory.dmp

Filesize
572KB

Download
memory/292-19-0x0000000075EA1000-0x0000000075EA3000-memory.dmp

Filesize
8KB

Download
memory/292-18-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/292-16-0x00000000000C0000-0x00000000000E8000-memory.dmp

Filesize
160KB

Download
memory/292-15-0x0000000000310000-0x0000000000317000-memory.dmp

Filesize
28KB

Download
memory/292-14-0x0000000000000000-mapping.dmp

Download
memory/304-17-0x0000000000000000-mapping.dmp

Download
memory/1304-13-0x0000000003A50000-0x0000000003B08000-memory.dmp

Filesize
736KB

Download
memory/1936-11-0x0000000000CB0000-0x0000000000FB3000-memory.dmp

Filesize
3.0MB

Download
memory/1936-12-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/1936-9-0x000000000041CFF0-mapping.dmp

Download
memory/1936-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2004-2-0x0000000073AF0000-0x00000000741DE000-memory.dmp

Filesize
6.9MB

Download
memory/2004-7-0x0000000005480000-0x0000000005524000-memory.dmp

Filesize
656KB

Download
memory/2004-6-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/2004-5-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Filesize
4KB

Download
memory/2004-3-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads