xloader | 5e74a8deacb5b18b78d3c7f9425210d696ad1b4f43e34b6f61d1f9e89ff0a9f7

General

Target

PO_006614.doc.exe
Size

1.3MB
MD5

07e55585280a090c5be065456bd3eaed
SHA1

142c3b752b1791b6d8eb7b8fb78f36773a51d808
SHA256

428e45ab1e675cd53981edd68a9d7989a78b267e069a8ce64415c5788c012212
SHA512

b9a8cde0da7a47f7242bf26f45a54820520b2469534caff639313a05a837ff16bdea1d206765a622c10cf5dc740c3be5107dd4bc2b6d1bd6f17aba007f90de87
SSDEEP

24576:RIjY+bAaMd3REebAaMd33zBNxFUVpkmkFFogHBa8+Gefg/kz:O5AaMVRE2AaMV3zBCLAFoOBa8+Gefg

Score

10^/10

xloader rbg8 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

rbg8

Decoy

youschrutedit.com

ashvarapps.com

lover4fun.com

xn--hvsa952mrp8a.com

gentryrewards.com

musfly.info

greatexpectationssouthshore.com

thebluecreators.com

chargementale.com

construirsanidade.com

asiannics.icu

cacchaweb.xyz

retailfully.com

mktdigitalplus.com

ohiohemorrhoidcenter.com

tzbwgc.com

representmasks.com

integratedpsychedelics.net

okrvsale.com

cashflowplatformblueprint.com

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/2872-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2872-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2748-22-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2624	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3000 set thread context of 2872	3000	PO_006614.doc.exe	31
PID 2872 set thread context of 1196	2872	PO_006614.doc.exe	21
PID 2748 set thread context of 1196	2748	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	PO_006614.doc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 20 IoCs

pid	Process
2872	PO_006614.doc.exe
2872	PO_006614.doc.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe
2748	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2872	PO_006614.doc.exe
2872	PO_006614.doc.exe
2872	PO_006614.doc.exe
2748	chkdsk.exe
2748	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	PO_006614.doc.exe
Token: SeDebugPrivilege	2748	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 3000 wrote to memory of 2872	3000	PO_006614.doc.exe	31
PID 1196 wrote to memory of 2748	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2748	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2748	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2748	1196	Explorer.EXE	32
PID 2748 wrote to memory of 2624	2748	chkdsk.exe	33
PID 2748 wrote to memory of 2624	2748	chkdsk.exe	33
PID 2748 wrote to memory of 2624	2748	chkdsk.exe	33
PID 2748 wrote to memory of 2624	2748	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
    "C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2872
- 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:2748
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2624

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/1196-18-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1196-23-0x0000000004C50000-0x0000000004DB0000-memory.dmp

Filesize
1.4MB

Download
memory/1196-19-0x0000000004C50000-0x0000000004DB0000-memory.dmp

Filesize
1.4MB

Download
memory/2748-22-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/2748-21-0x0000000000150000-0x0000000000157000-memory.dmp

Filesize
28KB

Download
memory/2748-20-0x0000000000150000-0x0000000000157000-memory.dmp

Filesize
28KB

Download
memory/2872-17-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/2872-14-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/2872-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2872-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2872-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2872-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3000-7-0x0000000005000000-0x0000000005042000-memory.dmp

Filesize
264KB

Download
memory/3000-6-0x00000000051D0000-0x0000000005250000-memory.dmp

Filesize
512KB

Download
memory/3000-0-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/3000-13-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/3000-5-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/3000-4-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/3000-3-0x0000000000310000-0x0000000000326000-memory.dmp

Filesize
88KB

Download
memory/3000-2-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/3000-1-0x0000000000FE0000-0x000000000113E000-memory.dmp

Filesize
1.4MB

Download

Analysis

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