xloader | 8527448ad0abb36e21c59136ab49a0886ebbf2548d3277ed7823907d0517d374

General

Target

dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe
Size

1.6MB
MD5

ba840e7358bb4e302e1fb21af1e3c77a
SHA1

6d3b9505425e00c404216b853ff6dcea40f286d0
SHA256

dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77
SHA512

0e9b0ca9340d37aed1207cd4f1886584e61a8eee38aeb3c0f4c41d2dc7cf8c5b280d1abfb4086d23441e1a2a33baa80d47b782f2e2cb79026bbd5adeeb3c2c60
SSDEEP

24576:7Bvct+W5oaXpcB7mVSaccPuvcd5OGQT/1/0nS+7n4SYwqK4zf3RTsAHWAgqChJ+N:p6iecPBGj2IpqpFNQuiNB/e

Score

10^/10

xloader c8bs discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

c8bs

Decoy

wdreparaciones.com

cateac.com

thenaturalattar.com

maebaelife.com

yh28r.com

ethiopiantravelguru.com

creative-artworks.net

palominomobilenotary.com

thelaundrymate.site

sgacraft.online

starbleach.com

nhansacvietnam.net

menab2b.net

xn--2osw87cr3a47lw2o.com

ztxwnqe.icu

zbzs02.com

vikkstarswazoneshowdown.com

beijingjin6.icu

sawingtechnologies.com

szzycb.com

Signatures

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

Xloader payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/464-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe
464	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe
464	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 1732	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	91
PID 4588 wrote to memory of 1732	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	91
PID 4588 wrote to memory of 1732	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	91
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93
PID 4588 wrote to memory of 464	4588	dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe	93

C:\Users\Admin\AppData\Local\Temp\dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe
"C:\Users\Admin\AppData\Local\Temp\dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wiWdfAno" /XML "C:\Users\Admin\AppData\Local\Temp\tmp56A7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1732
- C:\Users\Admin\AppData\Local\Temp\dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe
  "C:\Users\Admin\AppData\Local\Temp\dc8cd94e547cd182eb96ea6d3af0b25bcf11827d6a0f8fcd4d340358e1f9bc77.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp56A7.tmp

Filesize
1KB

MD5
8489e43abc8a2e943f1f6116493c9675

SHA1
1f6f180422bbae47c79c4ef8c50cd48e6dfeae91

SHA256
b6ff11326a6fcbef45efa507fbd4d5f97e8eb82edc3da468fa35dae3e1e83cc6

SHA512
7ee25a1432e186c16ee283055dddcee7ccb2730a5eff7fa7b7cb6d793d1805272a327a941885af6f7200aa190316246316f2428c8c2a03513ad1c034c012cc78

Download Submit
memory/464-21-0x0000000001520000-0x000000000186A000-memory.dmp

Filesize
3.3MB

Download
memory/464-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4588-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/4588-10-0x0000000005400000-0x0000000005436000-memory.dmp

Filesize
216KB

Download
memory/4588-5-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/4588-6-0x0000000005C40000-0x0000000005C96000-memory.dmp

Filesize
344KB

Download
memory/4588-7-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4588-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/4588-9-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4588-4-0x0000000005AB0000-0x0000000005B42000-memory.dmp

Filesize
584KB

Download
memory/4588-11-0x00000000075D0000-0x0000000007648000-memory.dmp

Filesize
480KB

Download
memory/4588-12-0x0000000007640000-0x0000000007670000-memory.dmp

Filesize
192KB

Download
memory/4588-3-0x0000000005FC0000-0x0000000006564000-memory.dmp

Filesize
5.6MB

Download
memory/4588-2-0x0000000005970000-0x0000000005A0C000-memory.dmp

Filesize
624KB

Download
memory/4588-20-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4588-1-0x0000000000E00000-0x0000000000F96000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads