xloader | e98d79940b2938bf67e5634799e270a3baf36927c57db389ea6599f40f7723b4

General

Target

SKM_4050210326102400 jpg.scr
Size

214KB
MD5

5dc5f2545bfd91c046ea5ea030147c93
SHA1

118ea38bcfdd48e38acd33e68f536012f2a9e71e
SHA256

257432b5ffbd5ae253f6be351f71f968d407f15e7f5ea78d7b613c7d663eba9c
SHA512

3da13538b130761c21847d5df144aafa83fd1e0ac9f9957421ea81d99092579fa1e73dcca6305edc5f220f38de18b747af6aaa24f1d9863da89cbfae58c89402
SSDEEP

6144:cQqeRseZ3O7WdUH2RIe5vt4x3oDmeVqRIxXP4Wyt:PRsepO7SC2SeNmloDmROxg7

Score

10^/10

xloader nvj9 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

nvj9

Decoy

xn--zueo-iqa.com

bjpowervision.com

immobilieraoujda.com

hurylaw.com

gvpdbtgjta.com

tvboxsmart.com

jarraprints.com

12391.xyz

mashangjianyun.com

jemadarehe.com

domineseutempo.com

awakeningwithautism.com

wuyuejs.com

boldbeecreations.com

avanseuscan1.com

mazandfootball.com

darkblue3-e3.xyz

miacebuche.com

luxenap.com

homeisliving.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/552-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/552-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/996-21-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2804	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
740	SKM_4050210326102400 jpg.scr
740	SKM_4050210326102400 jpg.scr

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 552	740	SKM_4050210326102400 jpg.scr	31
PID 552 set thread context of 1224	552	SKM_4050210326102400 jpg.scr	21
PID 996 set thread context of 1224	996	rundll32.exe	21

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 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	SKM_4050210326102400 jpg.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
740	SKM_4050210326102400 jpg.scr
740	SKM_4050210326102400 jpg.scr
740	SKM_4050210326102400 jpg.scr
740	SKM_4050210326102400 jpg.scr
552	SKM_4050210326102400 jpg.scr
552	SKM_4050210326102400 jpg.scr
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe
996	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
740	SKM_4050210326102400 jpg.scr
552	SKM_4050210326102400 jpg.scr
552	SKM_4050210326102400 jpg.scr
552	SKM_4050210326102400 jpg.scr
996	rundll32.exe
996	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	SKM_4050210326102400 jpg.scr
Token: SeDebugPrivilege	996	rundll32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 552	740	SKM_4050210326102400 jpg.scr	31
PID 740 wrote to memory of 552	740	SKM_4050210326102400 jpg.scr	31
PID 740 wrote to memory of 552	740	SKM_4050210326102400 jpg.scr	31
PID 740 wrote to memory of 552	740	SKM_4050210326102400 jpg.scr	31
PID 740 wrote to memory of 552	740	SKM_4050210326102400 jpg.scr	31
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 1224 wrote to memory of 996	1224	Explorer.EXE	32
PID 996 wrote to memory of 2804	996	rundll32.exe	33
PID 996 wrote to memory of 2804	996	rundll32.exe	33
PID 996 wrote to memory of 2804	996	rundll32.exe	33
PID 996 wrote to memory of 2804	996	rundll32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\SKM_4050210326102400 jpg.scr
  "C:\Users\Admin\AppData\Local\Temp\SKM_4050210326102400 jpg.scr" /S
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\Users\Admin\AppData\Local\Temp\SKM_4050210326102400 jpg.scr
    "C:\Users\Admin\AppData\Local\Temp\SKM_4050210326102400 jpg.scr" /S
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:552
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:996
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\SKM_4050210326102400 jpg.scr"
    3⤵
    - Deletes itself
    - 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 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

\Users\Admin\AppData\Local\Temp\nsoD04B.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/552-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/552-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/996-18-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/996-17-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/996-20-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/996-21-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1224-14-0x0000000006620000-0x0000000006763000-memory.dmp

Filesize
1.3MB

Download
memory/1224-22-0x0000000006620000-0x0000000006763000-memory.dmp

Filesize
1.3MB

Download

Analysis

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