xloader | 9d4210744b5ca656eb5a3c980a3fc19c92b01a3b272a6e1877689cbc38b5aa53

General

Target

RFQ-BCM 03122020.exe
Size

217KB
MD5

d3d5e6cafa8ca89384e56e6374a14203
SHA1

ba57aa266efd34ec5fe657c13ecda85e97ad5b5c
SHA256

214910524a528bab8dae4a704169e20d9f2f92444df6e6a65d19decafd9f69b0
SHA512

615e3abe07739af22fea6ba66b7d54f83652704adc237ef7ff3c21780e23d11bec7bab1f9b58e4c6cf0aed54b2fc9ba697520b18618bde88613bb07294c10cd6
SSDEEP

6144:cQqTvWkaWUhQu2unNCuqToj894c673nHa4c0t:yvWkpUEu/AHYvco

Score

10^/10

xloader um8e discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

um8e

Decoy

theypretend.com

hopeschildren.com

kuly.cloud

maniflexx.net

bedtimesocietyblog.com

spenglerwetlandpreserve.com

unity-play.net

bonap56.com

consciencevc.com

deluxeluxe.com

officialjuliep.com

cttrade.club

quietflyt.com

mcabspl.com

lippocaritahotel.com

tolanfilms.xyz

momenaagro.com

slingshotart.com

thefoundershuddle.com

mobilbaris.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/2112-11-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/2112-13-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/3068-19-0x0000000000080000-0x00000000000A8000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2536	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2580	RFQ-BCM 03122020.exe
2580	RFQ-BCM 03122020.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2580 set thread context of 2112	2580	RFQ-BCM 03122020.exe	30
PID 2112 set thread context of 1192	2112	RFQ-BCM 03122020.exe	21
PID 3068 set thread context of 1192	3068	cmmon32.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	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ-BCM 03122020.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2580	RFQ-BCM 03122020.exe
2580	RFQ-BCM 03122020.exe
2580	RFQ-BCM 03122020.exe
2580	RFQ-BCM 03122020.exe
2112	RFQ-BCM 03122020.exe
2112	RFQ-BCM 03122020.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe
3068	cmmon32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2580	RFQ-BCM 03122020.exe
2112	RFQ-BCM 03122020.exe
2112	RFQ-BCM 03122020.exe
2112	RFQ-BCM 03122020.exe
3068	cmmon32.exe
3068	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	RFQ-BCM 03122020.exe
Token: SeDebugPrivilege	3068	cmmon32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2112	2580	RFQ-BCM 03122020.exe	30
PID 2580 wrote to memory of 2112	2580	RFQ-BCM 03122020.exe	30
PID 2580 wrote to memory of 2112	2580	RFQ-BCM 03122020.exe	30
PID 2580 wrote to memory of 2112	2580	RFQ-BCM 03122020.exe	30
PID 2580 wrote to memory of 2112	2580	RFQ-BCM 03122020.exe	30
PID 1192 wrote to memory of 3068	1192	Explorer.EXE	31
PID 1192 wrote to memory of 3068	1192	Explorer.EXE	31
PID 1192 wrote to memory of 3068	1192	Explorer.EXE	31
PID 1192 wrote to memory of 3068	1192	Explorer.EXE	31
PID 3068 wrote to memory of 2536	3068	cmmon32.exe	32
PID 3068 wrote to memory of 2536	3068	cmmon32.exe	32
PID 3068 wrote to memory of 2536	3068	cmmon32.exe	32
PID 3068 wrote to memory of 2536	3068	cmmon32.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\RFQ-BCM 03122020.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ-BCM 03122020.exe"
  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:2580
- - C:\Users\Admin\AppData\Local\Temp\RFQ-BCM 03122020.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ-BCM 03122020.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2112
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:3068
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ-BCM 03122020.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2536

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\nsjB166.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/1192-14-0x0000000005180000-0x00000000052AF000-memory.dmp

Filesize
1.2MB

Download
memory/1192-20-0x0000000005180000-0x00000000052AF000-memory.dmp

Filesize
1.2MB

Download
memory/1192-21-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2112-11-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2112-13-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3068-17-0x0000000000E10000-0x0000000000E1D000-memory.dmp

Filesize
52KB

Download
memory/3068-18-0x0000000000E10000-0x0000000000E1D000-memory.dmp

Filesize
52KB

Download
memory/3068-19-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download

Analysis

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