xloader | de9346a05ac03dfd26e1d83046c07fb84540b26b6c4b6b8c06f29b5d34f21038

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 22:49

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General

Target

$PLUGINSDIR/oirygpbyia.dll
Size

38KB
MD5

6d2a0ca8aac6594e4f037d3cecdace3b
SHA1

2fdc815752d2483ae536ed60dd2104b0e5cc2abd
SHA256

f7a3aa43e037f6b25c8070b3aaac9f0c5037abb1c4d01afd30a6f52f7c44f468
SHA512

cacc25100aedd926141416ef443dd40f03cb6b1512129bd707fc8ece1c9db2ad9a1de559e8cb3d29b569e2b1b843822f4ef681c4ea33bc5a6a290a3f17bdb7ee
SSDEEP

384:g62dM1YJb19+21X4qFTrtR1836QFlqIknaqRCz+7+TY2EMfENSC4dlZ2dpwr:g6Ly19+2NFTJ7arFlRkKTYrGzIpwr

Score

10^/10

xloader kqna discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

kqna

Decoy

achyutlifesciences.com

anthemmg.com

netkopat.com

generationgirlnaturals.com

novatel-network.com

craftstockco.com

thevishantiverse.art

elkerfly.com

haerotechs.com

candypalette.com

gregdokes.com

e-commerce.company

gratitudeland.com

companyintelcloud.com

publicyazilim.com

xc6811.com

aracsozluk.com

janesgalant.quest

fraserstephendop.com

ryan.rentals

Signatures

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

Xloader payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral3/memory/1372-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/1372-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2264-9-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

rundll32.exerundll32.exewuapp.exe

description	pid	Process	procid_target
PID 348 set thread context of 1372	348	rundll32.exe	31
PID 1372 set thread context of 1216	1372	rundll32.exe	21
PID 2264 set thread context of 1216	2264	wuapp.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

rundll32.exerundll32.exewuapp.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

rundll32.exewuapp.exe

pid	Process
1372	rundll32.exe
1372	rundll32.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe
2264	wuapp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

rundll32.exewuapp.exe

pid	Process
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
2264	wuapp.exe
2264	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exewuapp.exe

description	pid	Process
Token: SeDebugPrivilege	1372	rundll32.exe
Token: SeDebugPrivilege	2264	wuapp.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

rundll32.exerundll32.exeExplorer.EXEwuapp.exe

description	pid	Process	procid_target
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 2548 wrote to memory of 348	2548	rundll32.exe	30
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 348 wrote to memory of 1372	348	rundll32.exe	31
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 1216 wrote to memory of 2264	1216	Explorer.EXE	32
PID 2264 wrote to memory of 2516	2264	wuapp.exe	33
PID 2264 wrote to memory of 2516	2264	wuapp.exe	33
PID 2264 wrote to memory of 2516	2264	wuapp.exe	33
PID 2264 wrote to memory of 2516	2264	wuapp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\oirygpbyia.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\oirygpbyia.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:348
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\oirygpbyia.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1372
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2264
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/348-0-0x0000000010009000-0x000000001000B000-memory.dmp

Filesize
8KB

Download
memory/1216-6-0x0000000004E50000-0x0000000004F1D000-memory.dmp

Filesize
820KB

Download
memory/1216-10-0x0000000004E50000-0x0000000004F1D000-memory.dmp

Filesize
820KB

Download
memory/1372-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1372-2-0x0000000002260000-0x0000000002563000-memory.dmp

Filesize
3.0MB

Download
memory/1372-5-0x0000000000130000-0x0000000000141000-memory.dmp

Filesize
68KB

Download
memory/1372-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2264-8-0x00000000009E0000-0x00000000009EB000-memory.dmp

Filesize
44KB

Download
memory/2264-7-0x00000000009E0000-0x00000000009EB000-memory.dmp

Filesize
44KB

Download
memory/2264-9-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download