xloader | 2f925841ba429e187973b3078d7fdc94d3c21b8b2876827e5b16a87a659e2738

General

Target

4sMcGGeBVCjd9IZ.exe
Size

766KB
MD5

a66b604ab210053291aa9c3a4434d5b9
SHA1

6841f037bc909103da8a43857dd05f91ca95cfd3
SHA256

7112b5fbfabba6a257da8523a6a1a982272941e48e072d8f8b7de372561dca48
SHA512

d95498915818517431e7523f3a10ebb9c4ea35857b7a247d576985195cbefc41c60034d78a1406bec804d5bf1183decfcbebaec67932e05123802cd9671368f3
SSDEEP

12288:QmK1ELtN5TE0ZQKLWy4JjbIoWiblbPgQ3WwiUKxwCA2aabp77DsjTIzgyf5A3FsE:DTESCBLxDgLZxi2aaF77Dswgyf5A3FsE

Score

10^/10

xloader p89m discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

p89m

Decoy

wrapapplausechutney.xyz

covidmobiletestingmd.com

convey.gifts

b148tlrfee9evtvorgm5947.com

zmlhtjfls.com

mctrumpthyism.com

lilaixi.store

interstatehardwarenj.com

horakokode.com

42wilsonavenue.com

muskanphysio.com

absoluteuniquecrafts.store

donategame.online

greenlinkengineering.net

pinchanzosloyalty.com

companyintel.network

resumewriterguru.com

oakalleyatcimarron.com

sriyawealthplan.com

mpcollection.online

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2708-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2708-17-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2564-22-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2208 set thread context of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2708 set thread context of 1268	2708	MSBuild.exe	21
PID 2564 set thread context of 1268	2564	chkdsk.exe	21

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4sMcGGeBVCjd9IZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2708	MSBuild.exe
2708	MSBuild.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe
2564	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2708	MSBuild.exe
2708	MSBuild.exe
2708	MSBuild.exe
2564	chkdsk.exe
2564	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	4sMcGGeBVCjd9IZ.exe
Token: SeDebugPrivilege	2708	MSBuild.exe
Token: SeDebugPrivilege	2564	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 2208 wrote to memory of 2708	2208	4sMcGGeBVCjd9IZ.exe	31
PID 1268 wrote to memory of 2564	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2564	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2564	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2564	1268	Explorer.EXE	32
PID 2564 wrote to memory of 2808	2564	chkdsk.exe	33
PID 2564 wrote to memory of 2808	2564	chkdsk.exe	33
PID 2564 wrote to memory of 2808	2564	chkdsk.exe	33
PID 2564 wrote to memory of 2808	2564	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\4sMcGGeBVCjd9IZ.exe
  "C:\Users\Admin\AppData\Local\Temp\4sMcGGeBVCjd9IZ.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1268-19-0x00000000067D0000-0x0000000006930000-memory.dmp

Filesize
1.4MB

Download
memory/1268-23-0x00000000067D0000-0x0000000006930000-memory.dmp

Filesize
1.4MB

Download
memory/2208-6-0x00000000057F0000-0x000000000589E000-memory.dmp

Filesize
696KB

Download
memory/2208-3-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/2208-4-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2208-5-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2208-2-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2208-7-0x00000000047A0000-0x000000000480C000-memory.dmp

Filesize
432KB

Download
memory/2208-1-0x0000000000B30000-0x0000000000BFA000-memory.dmp

Filesize
808KB

Download
memory/2208-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2208-14-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-22-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/2564-21-0x0000000000AE0000-0x0000000000AE7000-memory.dmp

Filesize
28KB

Download
memory/2564-20-0x0000000000AE0000-0x0000000000AE7000-memory.dmp

Filesize
28KB

Download
memory/2708-10-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2708-15-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/2708-17-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2708-18-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/2708-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2708-12-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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