xloader | ca992e7318046d8edff0446cf68f826d9430538661534130ee16e7f4a60512d4

General

Target

Order210622.exe
Size

867KB
MD5

a95e6cbd5fbab92fe57f838c1ec7b0af
SHA1

762e8ced25ffd5fc38a614e29505a2de53fe0d05
SHA256

b3694bb00b983f8e2bee0e39f5b852e0f73c076b860a93b8a63355ae59efb42b
SHA512

41637da58fd47b6d639393e6dcaf8fb019f06900a6491ae0f3b183426c4c3f98454d02b2c1c32f3282e1de4b26bc8e64bade8e1873a96f78c7ed950dd3058a34
SSDEEP

12288:6TedFkLhQlFKWFHmkafjGnLvWbHoGD9FA0skac/sDRCSCo/lidgo71Ym:aeBl7HhafEWbHoGD95VfsdCSCoQZx

Score

10^/10

xloader rnn4 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

rnn4

Decoy

saruroman.com

backendfurnitureconsulting.com

invitadito.com

aqemelearning.com

unitedphonerepair.com

xn--l6qt3dk7equidt4a.net

us-pride-day.com

refund.homes

gilanfarrconstruction.com

856380691.xyz

aerolabqhd.com

collective36.com

binhminhxanh.club

droogskateboards.com

thinkbest11.com

realisticallywritten.com

elderlyjustification.com

betteraff.net

freeworkpays.com

callistatease.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1192-15-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1192-19-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1192-23-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/2676-29-0x00000000000C0000-0x00000000000E8000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2740	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 1192	2272	Order210622.exe	31
PID 1192 set thread context of 1388	1192	Order210622.exe	21
PID 1192 set thread context of 1388	1192	Order210622.exe	21
PID 2676 set thread context of 1388	2676	mstsc.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	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Order210622.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1192	Order210622.exe
1192	Order210622.exe
1192	Order210622.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1192	Order210622.exe
1192	Order210622.exe
1192	Order210622.exe
1192	Order210622.exe
2676	mstsc.exe
2676	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1192	Order210622.exe
Token: SeDebugPrivilege	2676	mstsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 2272 wrote to memory of 1192	2272	Order210622.exe	31
PID 1388 wrote to memory of 2676	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2676	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2676	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2676	1388	Explorer.EXE	32
PID 2676 wrote to memory of 2740	2676	mstsc.exe	33
PID 2676 wrote to memory of 2740	2676	mstsc.exe	33
PID 2676 wrote to memory of 2740	2676	mstsc.exe	33
PID 2676 wrote to memory of 2740	2676	mstsc.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\Order210622.exe
  "C:\Users\Admin\AppData\Local\Temp\Order210622.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Users\Admin\AppData\Local\Temp\Order210622.exe
    "C:\Users\Admin\AppData\Local\Temp\Order210622.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1192
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2676
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Order210622.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2740

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/1192-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1192-19-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1192-10-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1192-17-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Filesize
3.0MB

Download
memory/1192-24-0x00000000002A0000-0x00000000002B0000-memory.dmp

Filesize
64KB

Download
memory/1192-23-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1192-15-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1192-20-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/1192-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1388-25-0x0000000004E40000-0x0000000004F27000-memory.dmp

Filesize
924KB

Download
memory/1388-21-0x0000000004E40000-0x0000000004F27000-memory.dmp

Filesize
924KB

Download
memory/1388-26-0x0000000006EE0000-0x000000000702B000-memory.dmp

Filesize
1.3MB

Download
memory/1388-30-0x0000000006EE0000-0x000000000702B000-memory.dmp

Filesize
1.3MB

Download
memory/2272-6-0x0000000007F30000-0x0000000007FC6000-memory.dmp

Filesize
600KB

Download
memory/2272-16-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-7-0x00000000009B0000-0x0000000000A0E000-memory.dmp

Filesize
376KB

Download
memory/2272-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2272-5-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-4-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2272-3-0x00000000005A0000-0x00000000005B6000-memory.dmp

Filesize
88KB

Download
memory/2272-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-1-0x0000000001140000-0x0000000001220000-memory.dmp

Filesize
896KB

Download
memory/2676-27-0x00000000007E0000-0x00000000008E4000-memory.dmp

Filesize
1.0MB

Download
memory/2676-28-0x00000000007E0000-0x00000000008E4000-memory.dmp

Filesize
1.0MB

Download
memory/2676-29-0x00000000000C0000-0x00000000000E8000-memory.dmp

Filesize
160KB

Download

Analysis

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