formbook | af2ab44a73066cdf3468fcf9a6f92f93218bfa6c777aa1dc30b219d6696b9cfa

Analysis

max time kernel
158s
max time network
168s
platform
windows7_x64
resource
win7-en-20211208
submitted
01/02/2022, 17:50

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General

Target
ORDER_80.exe
Size 246KB
Sample220201-wek38saeb4
SHA256 2c9c53afeadf78570137cbee063eb4446a2f2086d516b348199ed4500434c126
MD5 e15ae6b598e9b227a07a09056570afd6
SHA1 46b5a6c316570f75be5f9732ece769547d431e39
SHA512 9648aaae24b7384a12b3c165591c781c375cec2af31afa60002060d9ba81e0f4d616d50ac1e10dedd6d7c363a56ccdceb29598aac517d7dd4341b24256b93ad1
MD5 SHA1 SHA512

Score

10^/10

formbook xloader uar3 loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

Campaign

uar3

Decoy

sgadvocats.com
mjscannabus.com
hilldaley.com
ksdollhouse.com
hotgiftboutique.com
purebloodsmeet.com
relaunched.info
cap-glove.com
productcollection.store
fulikyy.xyz
remoteaviationjobs.com
bestcleancrystal.com
virtualorganizationpartner.com
bookgocar.com
hattuafhv.quest
makonigroup.com
officecom-myaccount.com
malgorzata-lac.com
e-learningeducators.com
hygilaur.com
kgv-lachswehr.com
salazarcomunicacion.com
robopython.com
corporateequity.online
complianceservicegroup.com
aperza-ex.com
webflowusa.com
asesoriasfinancieras.xyz
missolivesbranches.com
numiquest.com
criskconsultancy.com
gotemup.com
themaptalk.com
lakebalboahalf.com
cateringfrenchcroissant.com
paddocklakerealestate.com
lojaquerosurprezza.store
courtneywhitearmusic.com
geovannimaquinadevendas.online
pricklypairjazz.com
engagedigi.com
conduitforthespirit.com
anaheimaletrail.com
wholesalemall.store
alertsbecu.com
gestion-kayfra.com
youcanstores.com
qsuo.net
formadv.info
dihesia.xyz
carrreir.com
twenteeminuteswithtee.com
realliferenewal.com
officialprokodsukses.icu
stanfordgrouploscabos.com
maxicashpromir.xyz
zysqshjs.com
trc-clicks.com
chsclbd.com
amdproduce.net
republicoflies.com
beaux-parents.com
lucrativeapp.com
milbombas.com
alexanderplaywear.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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1404-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/772-63-0x00000000001C0000-0x00000000001E9000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

pid	Process
1020	vgarfcx.exe
1424	vgarfcx.exe

Deletes itself 1 IoCs

pid	Process
1624	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1664	ORDER_80.exe
1020	vgarfcx.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds 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\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\YHR8DFW0V = "C:\\Program Files (x86)\\Nsfv\\vgarfcx.exe"	wscript.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 1404	1664	ORDER_80.exe	27
PID 1404 set thread context of 1220	1404	ORDER_80.exe	7
PID 772 set thread context of 1220	772	wscript.exe	7
PID 1020 set thread context of 1424	1020	vgarfcx.exe	36

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Nsfv\vgarfcx.exe	wscript.exe
File created	C:\Program Files (x86)\Nsfv\vgarfcx.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

resource	yara_rule
behavioral1/files/0x000600000001266d-68.dat	nsis_installer_1
behavioral1/files/0x000600000001266d-68.dat	nsis_installer_2
behavioral1/files/0x000600000001266d-70.dat	nsis_installer_1
behavioral1/files/0x000600000001266d-70.dat	nsis_installer_2
behavioral1/files/0x000600000001266d-75.dat	nsis_installer_1
behavioral1/files/0x000600000001266d-75.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3846991908-3261386348-1409841751-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1404	ORDER_80.exe
1404	ORDER_80.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
1424	vgarfcx.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1220	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1404	ORDER_80.exe
1404	ORDER_80.exe
1404	ORDER_80.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe
772	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1404	ORDER_80.exe
Token: SeDebugPrivilege	772	wscript.exe
Token: SeDebugPrivilege	1424	vgarfcx.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1664 wrote to memory of 1404	1664	ORDER_80.exe	27
PID 1220 wrote to memory of 772	1220	Explorer.EXE	28
PID 1220 wrote to memory of 772	1220	Explorer.EXE	28
PID 1220 wrote to memory of 772	1220	Explorer.EXE	28
PID 1220 wrote to memory of 772	1220	Explorer.EXE	28
PID 772 wrote to memory of 1624	772	wscript.exe	29
PID 772 wrote to memory of 1624	772	wscript.exe	29
PID 772 wrote to memory of 1624	772	wscript.exe	29
PID 772 wrote to memory of 1624	772	wscript.exe	29
PID 772 wrote to memory of 1964	772	wscript.exe	34
PID 772 wrote to memory of 1964	772	wscript.exe	34
PID 772 wrote to memory of 1964	772	wscript.exe	34
PID 772 wrote to memory of 1964	772	wscript.exe	34
PID 1220 wrote to memory of 1020	1220	Explorer.EXE	35
PID 1220 wrote to memory of 1020	1220	Explorer.EXE	35
PID 1220 wrote to memory of 1020	1220	Explorer.EXE	35
PID 1220 wrote to memory of 1020	1220	Explorer.EXE	35
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 1020 wrote to memory of 1424	1020	vgarfcx.exe	36
PID 772 wrote to memory of 1964	772	wscript.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\ORDER_80.exe
  "C:\Users\Admin\AppData\Local\Temp\ORDER_80.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Users\Admin\AppData\Local\Temp\ORDER_80.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER_80.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1404
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - 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:772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\ORDER_80.exe"
    3⤵
    - Deletes itself
    PID:1624
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1964
- C:\Program Files (x86)\Nsfv\vgarfcx.exe
  "C:\Program Files (x86)\Nsfv\vgarfcx.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1020
- - C:\Program Files (x86)\Nsfv\vgarfcx.exe
    "C:\Program Files (x86)\Nsfv\vgarfcx.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1424

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

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/772-62-0x0000000000040000-0x0000000000066000-memory.dmp

Download

memory/772-64-0x0000000001ED0000-0x00000000021D3000-memory.dmp

Download

memory/772-65-0x0000000001D50000-0x0000000001DE0000-memory.dmp

Download

memory/772-63-0x00000000001C0000-0x00000000001E9000-memory.dmp

Download

memory/1220-66-0x0000000006CE0000-0x0000000006DCE000-memory.dmp

Download

memory/1220-61-0x0000000004EE0000-0x000000000507B000-memory.dmp

Download

memory/1404-59-0x0000000000850000-0x0000000000B53000-memory.dmp

Download

memory/1404-60-0x00000000002C0000-0x00000000002D1000-memory.dmp

Download

memory/1404-56-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/1424-76-0x0000000000930000-0x0000000000C33000-memory.dmp

Download

memory/1664-54-0x00000000754B1000-0x00000000754B3000-memory.dmp

Download

memory/1664-57-0x00000000005C0000-0x00000000005C2000-memory.dmp

Download