formbook | 8054dd2e45880794d187893bf7274cb69cc628baa62eec2a2dfb514af50c37c4

Analysis

max time kernel
145s
max time network
143s
platform
windows7_x64
resource
win7-20220414-en
submitted
07/07/2022, 03:42

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General

Target
SecuriteInfo.com.W32.AIDetectNet.01.24290.exe
Size 269KB
Sample220707-d9b5psegc9
SHA256 8054dd2e45880794d187893bf7274cb69cc628baa62eec2a2dfb514af50c37c4
MD5 d5353394b28c55fb2649da8d66f74cb8
SHA1 c6143cadad1adef54b5d7cf7a90035feb3e283a0
SHA512 e001b38a85e3be0cf15ecabc5fb20658878cc516a25d36bd6d6ed70c611e130fcf499a9a26aeacd2760c2e109acff0f1055bde6766029e727214be7ec43b4c02
MD5 SHA1 SHA512

Score

10^/10

formbook xloader tn61 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

Campaign

tn61

Decoy

ryliehorrall.art
mesdco.net
street-art-ink.com
sepetcin.com
stilghar.com
hawaiipooltiles.com
fuerst-von-falkennest.com
totalvirtue.com
xdk0blc0tqy6a7.life
zootowngravel.com
kreditkarten-optionde.com
6888tlbb.xyz
albertakleekai.com
travelnurseinfofinder3.life
valleyinnswat.com
secure-remove-devices.com
digitalswamy.com
www112casinova.com
medifasttrd.com
distritoxermar.com
ebwagner.com
biworker.com
0571kt.net
mjuelaw.com
buildlimitlesswealth.com
wbclips.com
session.care
museatthemill.com
pjhxsl.com
momentums6.com
electricbike.energy
accommodations.network
libroskolibris.com
sejintech.net
parkchestergardens.info
gndgame.info
arcwarp.com
aboveallonline.com
dinotacker.com
ufc188livestreamfree.com
saulomar.com
atmworldexpo.com
chooox.com
admissium.com
dacdem.com
oneruk-chandeliercleaning.com
oyster-iot.cloud
mutinybrewworks.com
yaoih.com
dmitchellpropertiesllc.com
nuoicaymosaigon.com
peacockgotv.com
nextr.xyz
bidvastil.com
shahanhan.com
goodlordy.net
banlyeojob.com
tasteatlus.com
ecotone-os.xyz
urbanartco.com
drecibo.com
davegwatkin.com
pharmiva.net
accordingtopreston.com
blizzardboy.net

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

resource	yara_rule
behavioral1/memory/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1480-59-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/524-67-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/524-72-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\IZ7TXT90VBFX = "C:\\Program Files (x86)\\Nzxqlgp\\mfcpjo8.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 632 set thread context of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 1480 set thread context of 1208	1480	cvtres.exe	8
PID 524 set thread context of 1208	524	help.exe	8

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Nzxqlgp\mfcpjo8.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

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

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1480	cvtres.exe
1480	cvtres.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1480	cvtres.exe
1480	cvtres.exe
1480	cvtres.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	cvtres.exe
Token: SeDebugPrivilege	524	help.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	26
PID 1208 wrote to memory of 524	1208	Explorer.EXE	49
PID 1208 wrote to memory of 524	1208	Explorer.EXE	49
PID 1208 wrote to memory of 524	1208	Explorer.EXE	49
PID 1208 wrote to memory of 524	1208	Explorer.EXE	49
PID 524 wrote to memory of 240	524	help.exe	50
PID 524 wrote to memory of 240	524	help.exe	50
PID 524 wrote to memory of 240	524	help.exe	50
PID 524 wrote to memory of 240	524	help.exe	50
PID 524 wrote to memory of 1924	524	help.exe	53
PID 524 wrote to memory of 1924	524	help.exe	53
PID 524 wrote to memory of 1924	524	help.exe	53
PID 524 wrote to memory of 1924	524	help.exe	53
PID 524 wrote to memory of 1924	524	help.exe	53

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.24290.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.24290.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:632
- - 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
    PID:1480
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:900
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:892
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:840
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1660
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:992
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:952
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1252
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1204
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2012
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2036
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1200
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1184
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1988
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2040
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2004
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1996
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2008
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1696
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:768
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:472
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:668
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1624
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:524
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
    3⤵
    PID:240
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1924

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/524-74-0x0000000075391000-0x0000000075393000-memory.dmp

Download

memory/524-72-0x0000000000080000-0x00000000000AB000-memory.dmp

Download

memory/524-70-0x00000000003C0000-0x0000000000450000-memory.dmp

Download

memory/524-69-0x0000000000650000-0x0000000000953000-memory.dmp

Download

memory/524-67-0x0000000000080000-0x00000000000AB000-memory.dmp

Download

memory/524-66-0x00000000009D0000-0x00000000009D6000-memory.dmp

Download

memory/632-54-0x0000000000B40000-0x0000000000B86000-memory.dmp

Download

memory/1208-64-0x0000000004A00000-0x0000000004AE4000-memory.dmp

Download

memory/1208-71-0x0000000004C30000-0x0000000004D4B000-memory.dmp

Download

memory/1208-73-0x0000000004C30000-0x0000000004D4B000-memory.dmp

Download

memory/1480-63-0x0000000000300000-0x0000000000311000-memory.dmp

Download

memory/1480-62-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Download

memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/1480-55-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/1480-56-0x0000000000400000-0x000000000042B000-memory.dmp

Download