xloader | 578cbee4a1035bc7e9679b0e478647556b49b2d4310b1f3beb2d531c3d283f80

General

Target

2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
Size

844KB
MD5

e12a4d95a3ee125919a807f7913b19e6
SHA1

a026aa3538d4580c55d4816ef580d96ae9951788
SHA256

b13a9b07dcfd6677e3092a0cae29b08487bb56d12345f3bd13931f2887b1738c
SHA512

c4479179a68c9e0f921f35fa7158a91199697f807b36a2d1704c6e34f74770965113c296d5e93ce0a827db9100fa60e4fd07c8bf40ac49c89c260689036ecb37
SSDEEP

12288:Y6VhCe+/DPYjaV3m9O2SSIuHwwHjdlnd5gzKa9TEFLYjP+osyn12G1Ps0heGdMGB:YbRjYn9OxSTp7QKiDqR4bnhemt

Score

10^/10

xloader rbpi discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

rbpi

Decoy

la-beaute-de-jade.com

sipsiew.com

hhshowstock.com

csxcdz.com

letsgetsocialconsulting.com

projectcleverweb.com

curiget.xyz

isearchjokes.com

smkpgri35jakarta.store

racismratingssystem.net

passivefiresafe.com

warpkings.com

52cbb.com

healthcential.com

kino-hd720.net

guochaocha.com

highseachartersct.com

voteformarc.com

mmcaraccessories.com

forevermusicgoup.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/4412-9-0x0000000006BE0000-0x0000000006BEA000-memory.dmp	CustAttr

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3172-14-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3172-19-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2964-25-0x0000000000700000-0x0000000000729000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 3172 set thread context of 3520	3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	56
PID 2964 set thread context of 3520	2964	raserver.exe	56

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	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
2964	raserver.exe
2964	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
Token: SeDebugPrivilege	3172	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
Token: SeDebugPrivilege	2964	raserver.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 4412 wrote to memory of 3172	4412	2021-04-18947 OC INVERSIONES RIVASOL PDF.exe	91
PID 3520 wrote to memory of 2964	3520	Explorer.EXE	92
PID 3520 wrote to memory of 2964	3520	Explorer.EXE	92
PID 3520 wrote to memory of 2964	3520	Explorer.EXE	92
PID 2964 wrote to memory of 2804	2964	raserver.exe	93
PID 2964 wrote to memory of 2804	2964	raserver.exe	93
PID 2964 wrote to memory of 2804	2964	raserver.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\2021-04-18947 OC INVERSIONES RIVASOL PDF.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Users\Admin\AppData\Local\Temp\2021-04-18947 OC INVERSIONES RIVASOL PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\2021-04-18947 OC INVERSIONES RIVASOL PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3172
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\2021-04-18947 OC INVERSIONES RIVASOL PDF.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2964-25-0x0000000000700000-0x0000000000729000-memory.dmp

Filesize
164KB

Download
memory/2964-24-0x0000000000DE0000-0x0000000000DFF000-memory.dmp

Filesize
124KB

Download
memory/2964-22-0x0000000000DE0000-0x0000000000DFF000-memory.dmp

Filesize
124KB

Download
memory/3172-14-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3172-19-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3172-20-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download
memory/3172-17-0x0000000001190000-0x00000000014DA000-memory.dmp

Filesize
3.3MB

Download
memory/3520-29-0x00000000091B0000-0x0000000009312000-memory.dmp

Filesize
1.4MB

Download
memory/3520-28-0x00000000091B0000-0x0000000009312000-memory.dmp

Filesize
1.4MB

Download
memory/3520-26-0x0000000008EF0000-0x000000000901E000-memory.dmp

Filesize
1.2MB

Download
memory/3520-21-0x0000000008EF0000-0x000000000901E000-memory.dmp

Filesize
1.2MB

Download
memory/4412-6-0x0000000005390000-0x000000000539A000-memory.dmp

Filesize
40KB

Download
memory/4412-8-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4412-13-0x00000000093D0000-0x0000000009444000-memory.dmp

Filesize
464KB

Download
memory/4412-11-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4412-16-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4412-10-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/4412-9-0x0000000006BE0000-0x0000000006BEA000-memory.dmp

Filesize
40KB

Download
memory/4412-12-0x0000000001340000-0x00000000013FA000-memory.dmp

Filesize
744KB

Download
memory/4412-7-0x0000000005640000-0x0000000005696000-memory.dmp

Filesize
344KB

Download
memory/4412-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/4412-5-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4412-4-0x0000000005440000-0x00000000054D2000-memory.dmp

Filesize
584KB

Download
memory/4412-3-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/4412-2-0x00000000053A0000-0x000000000543C000-memory.dmp

Filesize
624KB

Download
memory/4412-1-0x0000000000900000-0x00000000009D8000-memory.dmp

Filesize
864KB

Download

Analysis

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