xloader | ab12ca2a034e07fbdd6c9d6c31270f52173cd8559e12aad0aea593cc460867cd

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
22/02/2022, 08:08

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General

Target
ARCO Purchase Requisition NO. REQ-05426.xll
Size 4KB
Sample220222-j1kndaedf4
SHA256 ab12ca2a034e07fbdd6c9d6c31270f52173cd8559e12aad0aea593cc460867cd
MD5 448027ac61130d2e4d6db71e3bfbc888
SHA1 2119989b539ebe1cfcdac7a1d20672e7bf8f4415
SHA512 edd840b708bbdfb02bf8219ece6d9665bb9ef6ba7802d5ab9f07c7fa40c238bdd61d220ca8aade53a24e97f057b9cfa143179ffa8c1683ba4e66936f53c9431c
MD5 SHA1 SHA512

Score

10^/10

xloader g5ef loader rat

Malware Config

Extracted

Language

xlm4.0

Source

Extracted

Family

xloader

Version

Campaign

g5ef

Decoy

shoppingnow356.com
brendanlairdsound.com
stagonajewelry.com
metodoireca.com
makingsenseofresponsibility.com
fetch-an-us-borrow-money.zone
contemporarytaste.group
weightlossyard.com
brhomemortgage.com
healthcarerevamped.com
hiviz-people.net
hanrituany.com
kathryte.online
dbe648.com
davalilloenterprisesl.com
qh88.group
chargefreezone.com
whitmanscatering.net
yessarexport.com
theabsexpert.com
procedurejbfrequentw.com
shtmlg.com
neomary.xyz
nymiedog.com
securesupplies.biz
dev-arcourts.com
cavalliofficial.com
stewardgomioj.xyz
bisexualtv.com
adicv.com
monclerjacketsusa.biz
raw-ar.com
communityli.net
crasisonline.com
mgav15.xyz
tipsypixy.com
123ecole.com
mgdtlaser.com
minicarbattery.xyz
cukierniawz.com
murderingmediocrity.com
edgyveggie.biz
urbansageproperties.net
dempius.com
vulkanbetnow.space
laiedancasamento.com
rentsuggest.com
bestsideauto.com
punjab.host
farereservations.com
standoutbeseen.com
8888008.com
largestnft.com
onvw.top
web-solutiontnpasumo4.xyz
meditelier.com
cura-news.com
celebzinstanovelzz.com
whoviews.pro
noisesocial.com
ordonveigkv.mobi
inintentionswetrust.com
thenewsroompub.com
foragency.net
myappnow.net

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1080 created 4120	1080	svchost.exe	80

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1980-154-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2580-162-0x00000000006B0000-0x00000000006D9000-memory.dmp	xloader

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
4732	name.exe
3996	name.exe
1704	name.exe
1980	name.exe

Loads dropped DLL 2 IoCs

pid	Process
4120	EXCEL.EXE
4120	EXCEL.EXE

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4732 set thread context of 1980	4732	name.exe	101
PID 1980 set thread context of 2264	1980	name.exe	43
PID 2580 set thread context of 2264	2580	help.exe	43

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4120	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
4732	name.exe
4732	name.exe
4732	name.exe
4732	name.exe
1980	name.exe
1980	name.exe
1980	name.exe
1980	name.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe
2580	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2264	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1980	name.exe
1980	name.exe
1980	name.exe
2580	help.exe
2580	help.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1380	svchost.exe
Token: SeCreatePagefilePrivilege	1380	svchost.exe
Token: SeShutdownPrivilege	1380	svchost.exe
Token: SeCreatePagefilePrivilege	1380	svchost.exe
Token: SeTcbPrivilege	1080	svchost.exe
Token: SeTcbPrivilege	1080	svchost.exe
Token: SeShutdownPrivilege	1380	svchost.exe
Token: SeCreatePagefilePrivilege	1380	svchost.exe
Token: SeDebugPrivilege	4732	name.exe
Token: SeDebugPrivilege	1980	name.exe
Token: SeDebugPrivilege	2580	help.exe
Token: SeShutdownPrivilege	2264	Explorer.EXE
Token: SeCreatePagefilePrivilege	2264	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4120	EXCEL.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4120	EXCEL.EXE
4120	EXCEL.EXE
4120	EXCEL.EXE
4120	EXCEL.EXE
4120	EXCEL.EXE
4120	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 4732	1080	svchost.exe	87
PID 1080 wrote to memory of 4732	1080	svchost.exe	87
PID 1080 wrote to memory of 4732	1080	svchost.exe	87
PID 4732 wrote to memory of 3996	4732	name.exe	99
PID 4732 wrote to memory of 3996	4732	name.exe	99
PID 4732 wrote to memory of 3996	4732	name.exe	99
PID 4732 wrote to memory of 1704	4732	name.exe	100
PID 4732 wrote to memory of 1704	4732	name.exe	100
PID 4732 wrote to memory of 1704	4732	name.exe	100
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 4732 wrote to memory of 1980	4732	name.exe	101
PID 2264 wrote to memory of 2580	2264	Explorer.EXE	102
PID 2264 wrote to memory of 2580	2264	Explorer.EXE	102
PID 2264 wrote to memory of 2580	2264	Explorer.EXE	102
PID 2580 wrote to memory of 4636	2580	help.exe	103
PID 2580 wrote to memory of 4636	2580	help.exe	103
PID 2580 wrote to memory of 4636	2580	help.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ARCO Purchase Requisition NO. REQ-05426.xll"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:4120
- - C:\ProgramData\name.exe
    "C:\ProgramData\name.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4732
  - - C:\ProgramData\name.exe
      "C:\ProgramData\name.exe"
      4⤵
      Executes dropped EXE
      PID:3996
  - - C:\ProgramData\name.exe
      "C:\ProgramData\name.exe"
      4⤵
      Executes dropped EXE
      PID:1704
  - - C:\ProgramData\name.exe
      "C:\ProgramData\name.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1980
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\ProgramData\name.exe"
    3⤵
    PID:4636

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1380

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1380-140-0x000001BF09780000-0x000001BF09790000-memory.dmp

Download

memory/1380-141-0x000001BF0BE50000-0x000001BF0BE54000-memory.dmp

Download

memory/1380-139-0x000001BF09720000-0x000001BF09730000-memory.dmp

Download

memory/1980-154-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/1980-157-0x00000000017E0000-0x0000000001B2A000-memory.dmp

Download

memory/1980-159-0x0000000001330000-0x0000000001341000-memory.dmp

Download

memory/1980-158-0x000000000041D000-0x000000000041E000-memory.dmp

Download

memory/2264-165-0x0000000007CC0000-0x0000000007DED000-memory.dmp

Download

memory/2264-160-0x000000000AE50000-0x000000000AFE1000-memory.dmp

Download

memory/2580-164-0x0000000000CF0000-0x0000000000D80000-memory.dmp

Download

memory/2580-163-0x0000000000F90000-0x00000000012DA000-memory.dmp

Download

memory/2580-162-0x00000000006B0000-0x00000000006D9000-memory.dmp

Download

memory/2580-161-0x0000000000F80000-0x0000000000F87000-memory.dmp

Download

memory/4120-132-0x00007FFC667B0000-0x00007FFC667C0000-memory.dmp

Download

memory/4120-134-0x00007FFC667B0000-0x00007FFC667C0000-memory.dmp

Download

memory/4120-133-0x00007FFC667B0000-0x00007FFC667C0000-memory.dmp

Download

memory/4120-136-0x00007FFCA67D0000-0x00007FFCA67D1000-memory.dmp

Download

memory/4120-130-0x00007FFC667B0000-0x00007FFC667C0000-memory.dmp

Download

memory/4120-131-0x00007FFC667B0000-0x00007FFC667C0000-memory.dmp

Download

memory/4120-135-0x00007FFCA67CD000-0x00007FFCA67CE000-memory.dmp

Download

memory/4120-143-0x0000000050D40000-0x0000000050D46000-memory.dmp

Download

memory/4732-149-0x0000000005400000-0x0000000005401000-memory.dmp

Download

memory/4732-147-0x0000000005700000-0x0000000005CA4000-memory.dmp

Download

memory/4732-146-0x0000000000860000-0x0000000000946000-memory.dmp

Download

memory/4732-145-0x000000007441E000-0x000000007441F000-memory.dmp

Download

memory/4732-148-0x00000000051F0000-0x0000000005282000-memory.dmp

Download

memory/4732-151-0x0000000007490000-0x000000000752C000-memory.dmp

Download

memory/4732-150-0x00000000051C0000-0x00000000051CA000-memory.dmp

Download