formbook | a12d62cf3071c705c6527b3a640f6dfa3f4823cf5289f8be7cba25ac14e79031

General

Target

dir1.exe
Size

1.2MB
MD5

20485bdf912a946e680b2237a0584190
SHA1

d070917962559bac8543d0a7875dd19d46a5739f
SHA256

a12d62cf3071c705c6527b3a640f6dfa3f4823cf5289f8be7cba25ac14e79031
SHA512

5a8bb98c44e051b7b5f0339d3a0bdf3be438100fa74aaab962276fbc1a4fa79ad0314c30bf6468948e3ac797bf8a4e96fcfa8535177cb1a446ff2553998606cb

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/804-8-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/804-9-0x000000000041CFF0-mapping.dmp	xloader
behavioral1/memory/280-17-0x0000000000090000-0x00000000000B8000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1636 cmd.exe
Suspicious use of SetThreadContext 2 IoCs

Processes:

dir1.exedir1.exe

description pid process target process

PID 1812 set thread context of 804 1812 dir1.exe dir1.exe
PID 804 set thread context of 1200 804 dir1.exe Explorer.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

dir1.exemsiexec.exe

pid process

804 dir1.exe
804 dir1.exe
280 msiexec.exe
280 msiexec.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

dir1.exemsiexec.exe

pid process

804 dir1.exe
804 dir1.exe
804 dir1.exe
280 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dir1.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 804 dir1.exe
Token: SeDebugPrivilege 280 msiexec.exe

pid	process
1636	cmd.exe

description	pid	process	target process
PID 1812 set thread context of 804	1812	dir1.exe	dir1.exe
PID 804 set thread context of 1200	804	dir1.exe	Explorer.EXE

pid	process
804	dir1.exe
804	dir1.exe
280	msiexec.exe
280	msiexec.exe

pid	process
804	dir1.exe
804	dir1.exe
804	dir1.exe
280	msiexec.exe

description	pid	process
Token: SeDebugPrivilege	804	dir1.exe
Token: SeDebugPrivilege	280	msiexec.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

dir1.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1812 wrote to memory of 804	1812	dir1.exe	dir1.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 1200 wrote to memory of 280	1200	Explorer.EXE	msiexec.exe
PID 280 wrote to memory of 1636	280	msiexec.exe	cmd.exe
PID 280 wrote to memory of 1636	280	msiexec.exe	cmd.exe
PID 280 wrote to memory of 1636	280	msiexec.exe	cmd.exe
PID 280 wrote to memory of 1636	280	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Local\Temp\dir1.exe
"C:\Users\Admin\AppData\Local\Temp\dir1.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1812

C:\Users\Admin\AppData\Local\Temp\dir1.exe
"C:\Users\Admin\AppData\Local\Temp\dir1.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:804

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:280

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\dir1.exe"
3⤵
- Deletes itself
PID:1636

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/280-14-0x0000000000000000-mapping.dmp

Download
memory/280-17-0x0000000000090000-0x00000000000B8000-memory.dmp

Filesize
160KB

Download
memory/280-18-0x00000000022E0000-0x00000000025E3000-memory.dmp

Filesize
3.0MB

Download
memory/280-16-0x0000000000D30000-0x0000000000D44000-memory.dmp

Filesize
80KB

Download
memory/280-15-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download
memory/804-12-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/804-9-0x000000000041CFF0-mapping.dmp

Download
memory/804-11-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download
memory/804-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1200-13-0x0000000004210000-0x000000000433A000-memory.dmp

Filesize
1.2MB

Download
memory/1636-19-0x0000000000000000-mapping.dmp

Download
memory/1812-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1812-7-0x0000000004770000-0x0000000004815000-memory.dmp

Filesize
660KB

Download
memory/1812-6-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/1812-5-0x0000000004F20000-0x0000000004F21000-memory.dmp

Filesize
4KB

Download
memory/1812-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing