formbook | 0dbc37565a20d8e5d40c4c554a194719291bc91ab86db587337b580106f41cb8

General

Target

tmp.exe
Size

270KB
MD5

40292541a586f5c7e2af4f0b5efde77c
SHA1

4fc8c817e38575a5427fdd2741abf20fc9fb3365
SHA256

0dbc37565a20d8e5d40c4c554a194719291bc91ab86db587337b580106f41cb8
SHA512

ceb7888d6a1a94f898f9fb3e44db01574256e59e7690238384fcc853b55553089d2fbf221b179b5cf4baaa54bc6f58ad3db3b36dc747170d10209f4fa4339091

Score

10^/10

formbook xloader uajq loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

uajq

Decoy

pixeldoughnut.com

amadeushosting.com

sitecindustrial.com

orsaigroup.com

jmuse-dev.com

angelobreviario.com

storesafe.xyz

40veryoung.com

65228267.com

xmpanshi.com

luxorscbd.com

saoirsia.com

akwadcom.com

spreast.com

net-empresa12pcs.com

avlaoge1.com

projectmuellerllc.com

hvelv.com

a2bproject.com

myhome-huahin.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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1768-58-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1768-59-0x000000000041F2A0-mapping.dmp	xloader
behavioral1/memory/1768-61-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1768-69-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/964-73-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/964-76-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wininit.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wininit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HRTXNPYPTL = "C:\\Program Files (x86)\\Inz7dbbv\\vga1bgd.exe"	wininit.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

tmp.execvtres.exewininit.exe

description	pid	process	target process
PID 2044 set thread context of 1768	2044	tmp.exe	cvtres.exe
PID 1768 set thread context of 1256	1768	cvtres.exe	Explorer.EXE
PID 1768 set thread context of 1256	1768	cvtres.exe	Explorer.EXE
PID 964 set thread context of 1256	964	wininit.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wininit.exe

description ioc process

File opened for modification C:\Program Files (x86)\Inz7dbbv\vga1bgd.exe wininit.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Inz7dbbv\vga1bgd.exe	wininit.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wininit.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wininit.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

cvtres.exewininit.exe

pid	process
1768	cvtres.exe
1768	cvtres.exe
1768	cvtres.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe
964	wininit.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

cvtres.exewininit.exe

pid process

1768 cvtres.exe
1768 cvtres.exe
1768 cvtres.exe
1768 cvtres.exe
964 wininit.exe
964 wininit.exe
964 wininit.exe
964 wininit.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

tmp.execvtres.exewininit.exe

description pid process

Token: SeDebugPrivilege 2044 tmp.exe
Token: SeDebugPrivilege 1768 cvtres.exe
Token: SeDebugPrivilege 964 wininit.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2044	tmp.exe
Token: SeDebugPrivilege	1768	cvtres.exe
Token: SeDebugPrivilege	964	wininit.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

tmp.execvtres.exewininit.exe

description	pid	process	target process
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 2044 wrote to memory of 1768	2044	tmp.exe	cvtres.exe
PID 1768 wrote to memory of 964	1768	cvtres.exe	wininit.exe
PID 1768 wrote to memory of 964	1768	cvtres.exe	wininit.exe
PID 1768 wrote to memory of 964	1768	cvtres.exe	wininit.exe
PID 1768 wrote to memory of 964	1768	cvtres.exe	wininit.exe
PID 964 wrote to memory of 1812	964	wininit.exe	cmd.exe
PID 964 wrote to memory of 1812	964	wininit.exe	cmd.exe
PID 964 wrote to memory of 1812	964	wininit.exe	cmd.exe
PID 964 wrote to memory of 1812	964	wininit.exe	cmd.exe
PID 964 wrote to memory of 688	964	wininit.exe	Firefox.exe
PID 964 wrote to memory of 688	964	wininit.exe	Firefox.exe
PID 964 wrote to memory of 688	964	wininit.exe	Firefox.exe
PID 964 wrote to memory of 688	964	wininit.exe	Firefox.exe
PID 964 wrote to memory of 688	964	wininit.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1256

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
4⤵
- Adds 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:964

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
5⤵
PID:1812

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
5⤵
PID:688

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/964-68-0x0000000000000000-mapping.dmp

Download
memory/964-78-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/964-76-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/964-74-0x0000000000800000-0x0000000000890000-memory.dmp

Filesize
576KB

Download
memory/964-73-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/964-72-0x0000000001E90000-0x0000000002193000-memory.dmp

Filesize
3.0MB

Download
memory/964-71-0x0000000000A70000-0x0000000000A8A000-memory.dmp

Filesize
104KB

Download
memory/1256-67-0x00000000060D0000-0x0000000006211000-memory.dmp

Filesize
1.3MB

Download
memory/1256-64-0x0000000005F80000-0x00000000060C6000-memory.dmp

Filesize
1.3MB

Download
memory/1256-77-0x0000000006220000-0x000000000636C000-memory.dmp

Filesize
1.3MB

Download
memory/1256-75-0x0000000006220000-0x000000000636C000-memory.dmp

Filesize
1.3MB

Download
memory/1768-62-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/1768-69-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1768-63-0x0000000000200000-0x0000000000211000-memory.dmp

Filesize
68KB

Download
memory/1768-61-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1768-59-0x000000000041F2A0-mapping.dmp

Download
memory/1768-58-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1768-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1768-66-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/1768-55-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1812-70-0x0000000000000000-mapping.dmp

Download
memory/2044-54-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads