xloader | 85b20b341d86b43b4da52abf6a661f16ff07cf2f3b8701689fedcc3e036bd1a4

General

Target

MAERSK Shipping Information_Pdf.exe
Size

570KB
MD5

457b46b043654c58320fcde48282b9f6
SHA1

74d83159033ac73479c21b8b0194fe92fd3e49dd
SHA256

201436245bc7a5ccba11660b260ae4361b26b2e4a301491c4f2b319f8eeb9122
SHA512

92b68cd4188b2e5f357a37e9c16d1dbc0f95b238127c7ce5d08f47add2e864a6b7892181bc20fffedf43f6fde23261a7e05c864314720f58c20e81c77811784e
SSDEEP

12288:Nvln7HTM17QPFy4XEcHcMcZmf2SIMt+/gO40m2i9rwgLXWHCM2K4C:nUCxUacrZ1/gOLC9rl13C

Score

10^/10

xloader u86g discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

u86g

Decoy

4tnoxrox.com

ff130.com

grapevinecrisiscare.com

system91.com

blondedocfabprivacypolicy.com

amphorabeverageservices.com

cvacity.info

cbghemppills.com

iowaconcertofhope.com

theilerablog.com

bg1133.com

jenniferkristinphotography.com

wnj.xyz

khdoctor.com

mittelstandsgestaltung.com

mimikis.info

my-data.pro

nativesonlabs.com

thelincmagazine.com

dsfrederick.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2812-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2812-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2588-21-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2668	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2504 set thread context of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2812 set thread context of 1176	2812	MAERSK Shipping Information_Pdf.exe	21
PID 2588 set thread context of 1176	2588	explorer.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	MAERSK Shipping Information_Pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2504	MAERSK Shipping Information_Pdf.exe
2812	MAERSK Shipping Information_Pdf.exe
2668	cmd.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2812	MAERSK Shipping Information_Pdf.exe
2812	MAERSK Shipping Information_Pdf.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe
2588	explorer.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2812	MAERSK Shipping Information_Pdf.exe
2812	MAERSK Shipping Information_Pdf.exe
2812	MAERSK Shipping Information_Pdf.exe
2588	explorer.exe
2588	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	MAERSK Shipping Information_Pdf.exe
Token: SeDebugPrivilege	2588	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 2504 wrote to memory of 2812	2504	MAERSK Shipping Information_Pdf.exe	31
PID 1176 wrote to memory of 2588	1176	Explorer.EXE	32
PID 1176 wrote to memory of 2588	1176	Explorer.EXE	32
PID 1176 wrote to memory of 2588	1176	Explorer.EXE	32
PID 1176 wrote to memory of 2588	1176	Explorer.EXE	32
PID 2588 wrote to memory of 2668	2588	explorer.exe	33
PID 2588 wrote to memory of 2668	2588	explorer.exe	33
PID 2588 wrote to memory of 2668	2588	explorer.exe	33
PID 2588 wrote to memory of 2668	2588	explorer.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\MAERSK Shipping Information_Pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\MAERSK Shipping Information_Pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Users\Admin\AppData\Local\Temp\MAERSK Shipping Information_Pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\MAERSK Shipping Information_Pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2812
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:2588
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MAERSK Shipping Information_Pdf.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    PID:2668

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1176-18-0x0000000005160000-0x00000000052AF000-memory.dmp

Filesize
1.3MB

Download
memory/1176-22-0x0000000005160000-0x00000000052AF000-memory.dmp

Filesize
1.3MB

Download
memory/2504-6-0x0000000005D80000-0x0000000005DFC000-memory.dmp

Filesize
496KB

Download
memory/2504-3-0x0000000000570000-0x000000000057E000-memory.dmp

Filesize
56KB

Download
memory/2504-4-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/2504-5-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-7-0x0000000000DD0000-0x0000000000E14000-memory.dmp

Filesize
272KB

Download
memory/2504-1-0x0000000001020000-0x00000000010B4000-memory.dmp

Filesize
592KB

Download
memory/2504-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/2504-13-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2588-21-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/2588-20-0x0000000000CE0000-0x0000000000F61000-memory.dmp

Filesize
2.5MB

Download
memory/2588-19-0x0000000000CE0000-0x0000000000F61000-memory.dmp

Filesize
2.5MB

Download
memory/2812-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2812-17-0x0000000000130000-0x0000000000140000-memory.dmp

Filesize
64KB

Download
memory/2812-14-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/2812-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2812-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2812-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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