formbook | 4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651

General

Target

4aac66abd3deb77faf44d3fb5884f0a6.exe
Size

699KB
MD5

4aac66abd3deb77faf44d3fb5884f0a6
SHA1

a5b550d6b41ad1cd9287d2892a65ac856de1bebf
SHA256

4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651
SHA512

3be81a77ffadb309689738dec4e6f235eff195492e21451d373113e531b3f516b9db2b43857577fd9257a6014934124e26bd84a80683fe3eca6666b69fe398f1

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.herbmedia.net/csv8/

Decoy

slgacha.com

oohdough.com

6983ylc.com

aykassociate.com

latin-hotspot.com

starrockindia.com

beamsubway.com

queensboutique1000.com

madbaddie.com

bhoomimart.com

ankitparivar.com

aldanasanchezmx.com

citest1597669833.com

cristianofreitas.com

myplantus.com

counterfeitmilk.com

8xf39.com

pregnantwomens.com

yyyut6.com

stnanguo.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/360-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/360-14-0x000000000041D0C0-mapping.dmp	xloader
behavioral2/memory/1372-16-0x0000000000000000-mapping.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

Processes:

4aac66abd3deb77faf44d3fb5884f0a6.exevbc.execolorcpl.exe

description	pid	process	target process
PID 988 set thread context of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 360 set thread context of 3128	360	vbc.exe	Explorer.EXE
PID 1372 set thread context of 3128	1372	colorcpl.exe	Explorer.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3920 schtasks.exe

pid	process
3920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

Processes:

4aac66abd3deb77faf44d3fb5884f0a6.exevbc.execolorcpl.exe

pid	process
988	4aac66abd3deb77faf44d3fb5884f0a6.exe
360	vbc.exe
360	vbc.exe
360	vbc.exe
360	vbc.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe
1372	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.execolorcpl.exe

pid process

360 vbc.exe
360 vbc.exe
360 vbc.exe
1372 colorcpl.exe
1372 colorcpl.exe

pid	process
360	vbc.exe
360	vbc.exe
360	vbc.exe
1372	colorcpl.exe
1372	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

4aac66abd3deb77faf44d3fb5884f0a6.exevbc.execolorcpl.exe

description	pid	process
Token: SeDebugPrivilege	988	4aac66abd3deb77faf44d3fb5884f0a6.exe
Token: SeDebugPrivilege	360	vbc.exe
Token: SeDebugPrivilege	1372	colorcpl.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

4aac66abd3deb77faf44d3fb5884f0a6.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 988 wrote to memory of 3920	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	schtasks.exe
PID 988 wrote to memory of 3920	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	schtasks.exe
PID 988 wrote to memory of 3920	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	schtasks.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 988 wrote to memory of 360	988	4aac66abd3deb77faf44d3fb5884f0a6.exe	vbc.exe
PID 3128 wrote to memory of 1372	3128	Explorer.EXE	colorcpl.exe
PID 3128 wrote to memory of 1372	3128	Explorer.EXE	colorcpl.exe
PID 3128 wrote to memory of 1372	3128	Explorer.EXE	colorcpl.exe
PID 1372 wrote to memory of 3044	1372	colorcpl.exe	cmd.exe
PID 1372 wrote to memory of 3044	1372	colorcpl.exe	cmd.exe
PID 1372 wrote to memory of 3044	1372	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3128

C:\Users\Admin\AppData\Local\Temp\4aac66abd3deb77faf44d3fb5884f0a6.exe
"C:\Users\Admin\AppData\Local\Temp\4aac66abd3deb77faf44d3fb5884f0a6.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\emozgtRJhjspJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD806.tmp"
3⤵
- Creates scheduled task(s)
PID:3920

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:360

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:3044

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD806.tmp
MD5
9ec708e8606a38f077cc88993ff66158

SHA1
f0a90e2c1c177ea71a8affae8b38a01dfb475e71

SHA256
115e936f53fff67f3fca1afc8cae5b54ec2b9d6c98263068ef86cec7227601e7

SHA512
9f01093f77cb7f2ed21a0720521507b7c2f257712da3dbca262457e414a23e8881c66d20d716eb1c46aa38ef4ddcf33ef94ce35df36193b38ef9488f39f13c2e

Download Submit
memory/360-14-0x000000000041D0C0-mapping.dmp

Download
memory/360-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/988-3-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/988-5-0x0000000005A40000-0x0000000005A41000-memory.dmp

Filesize
4KB

Download
memory/988-6-0x0000000005430000-0x0000000005431000-memory.dmp

Filesize
4KB

Download
memory/988-7-0x00000000054E0000-0x00000000054E1000-memory.dmp

Filesize
4KB

Download
memory/988-8-0x00000000055E0000-0x00000000055EE000-memory.dmp

Filesize
56KB

Download
memory/988-9-0x0000000007AF0000-0x0000000007B6B000-memory.dmp

Filesize
492KB

Download
memory/988-10-0x0000000007C10000-0x0000000007C11000-memory.dmp

Filesize
4KB

Download
memory/988-2-0x0000000073310000-0x00000000739FE000-memory.dmp

Filesize
6.9MB

Download
memory/1372-16-0x0000000000000000-mapping.dmp

Download
memory/1372-17-0x0000000000230000-0x0000000000249000-memory.dmp

Filesize
100KB

Download
memory/1372-18-0x0000000000230000-0x0000000000249000-memory.dmp

Filesize
100KB

Download
memory/3044-19-0x0000000000000000-mapping.dmp

Download
memory/3920-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads