xloader | bffc9c0c74952c439ca980be37a1f1e21c182b13c992f1a345a541413bfea91a

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31-05-2024 03:13

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General

Target

74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
Size

408KB
MD5

74bd3fc0782c84d45e5659a378f9dc01
SHA1

e905675d92d1ee0d278796af59827b1231cc9d34
SHA256

bffc9c0c74952c439ca980be37a1f1e21c182b13c992f1a345a541413bfea91a
SHA512

0da4491c4558970de3f13a85769d73354b2b369031fd3bfee2c8d3a393c814a005f6f2a3e32edf4d5c563dfaf0b3fdb1c49006ec51c2bd673bb814517dba7e80
SSDEEP

6144:LHAgbCa8sGQTpS1KzolRLNYXkw7W1ZA4s9m8HTVZ:LHX8kT8KznXkBskUTVZ

Score

10^/10

xloader u4xn loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.1

Campaign

u4xn

Decoy

yanghl.com

decorvea.online

xn--fjq92bw28b1tloj5a39d42h.com

yumler.info

laketravisautosales.net

zjnrgx.info

harrimanpm.com

dell-yh.com

eze.fitness

pritpritzoom.com

hackgarage.com

mydomterry.net

castrotom.com

coffeecosplay.com

wsfg-hk.com

crystalbeachstudio.com

bestofreadbook.win

sutasz.info

yunfengyue.com

h11011.com

Signatures

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

Xloader payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/948-26-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/948-29-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1456-32-0x0000000000080000-0x00000000000A8000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

sogm.exeAddInProcess32.exe

pid	Process
2132	sogm.exe
948	AddInProcess32.exe

Loads dropped DLL 2 IoCs

Processes:

74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exesogm.exe

pid	Process
1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
2132	sogm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\msufr.exe = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\sogm.exe"	reg.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

sogm.exeAddInProcess32.execolorcpl.exe

description	pid	Process	procid_target
PID 2132 set thread context of 948	2132	sogm.exe	34
PID 948 set thread context of 1380	948	AddInProcess32.exe	21
PID 948 set thread context of 1380	948	AddInProcess32.exe	21
PID 1456 set thread context of 1380	1456	colorcpl.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exesogm.exeAddInProcess32.execolorcpl.exe

pid	Process
1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
2132	sogm.exe
2132	sogm.exe
2132	sogm.exe
948	AddInProcess32.exe
948	AddInProcess32.exe
948	AddInProcess32.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe
1456	colorcpl.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

AddInProcess32.execolorcpl.exe

pid	Process
948	AddInProcess32.exe
948	AddInProcess32.exe
948	AddInProcess32.exe
948	AddInProcess32.exe
1456	colorcpl.exe
1456	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exesogm.exeAddInProcess32.execolorcpl.exe

description	pid	Process
Token: SeDebugPrivilege	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
Token: SeDebugPrivilege	2132	sogm.exe
Token: SeDebugPrivilege	948	AddInProcess32.exe
Token: SeDebugPrivilege	1456	colorcpl.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.execmd.exesogm.exeAddInProcess32.execolorcpl.exe

description	pid	Process	procid_target
PID 1752 wrote to memory of 2624	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	28
PID 1752 wrote to memory of 2624	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	28
PID 1752 wrote to memory of 2624	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	28
PID 1752 wrote to memory of 2624	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	28
PID 2624 wrote to memory of 2848	2624	cmd.exe	30
PID 2624 wrote to memory of 2848	2624	cmd.exe	30
PID 2624 wrote to memory of 2848	2624	cmd.exe	30
PID 2624 wrote to memory of 2848	2624	cmd.exe	30
PID 1752 wrote to memory of 2132	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	33
PID 1752 wrote to memory of 2132	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	33
PID 1752 wrote to memory of 2132	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	33
PID 1752 wrote to memory of 2132	1752	74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe	33
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 2132 wrote to memory of 948	2132	sogm.exe	34
PID 948 wrote to memory of 1456	948	AddInProcess32.exe	35
PID 948 wrote to memory of 1456	948	AddInProcess32.exe	35
PID 948 wrote to memory of 1456	948	AddInProcess32.exe	35
PID 948 wrote to memory of 1456	948	AddInProcess32.exe	35
PID 1456 wrote to memory of 2336	1456	colorcpl.exe	36
PID 1456 wrote to memory of 2336	1456	colorcpl.exe	36
PID 1456 wrote to memory of 2336	1456	colorcpl.exe	36
PID 1456 wrote to memory of 2336	1456	colorcpl.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1380
- C:\Users\Admin\AppData\Local\Temp\74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\74bd3fc0782c84d45e5659a378f9dc01JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v msufr.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogm.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2624
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v msufr.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogm.exe"
      4⤵
      Adds Run key to start application
      PID:2848
- - C:\Users\Admin\sogm.exe
    "C:\Users\Admin\sogm.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:948
    - - C:\Windows\SysWOW64\colorcpl.exe
        
        "C:\Windows\SysWOW64\colorcpl.exe"
        5⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1456
      - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
        6⤵
        
        PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\sogm.exe

Filesize
408KB

MD5
74bd3fc0782c84d45e5659a378f9dc01

SHA1
e905675d92d1ee0d278796af59827b1231cc9d34

SHA256
bffc9c0c74952c439ca980be37a1f1e21c182b13c992f1a345a541413bfea91a

SHA512
0da4491c4558970de3f13a85769d73354b2b369031fd3bfee2c8d3a393c814a005f6f2a3e32edf4d5c563dfaf0b3fdb1c49006ec51c2bd673bb814517dba7e80

Download Submit
memory/948-29-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/948-26-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/948-21-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/948-23-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/948-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1380-33-0x0000000006C10000-0x0000000006D49000-memory.dmp

Filesize
1.2MB

Download
memory/1380-30-0x0000000007450000-0x00000000075B9000-memory.dmp

Filesize
1.4MB

Download
memory/1456-32-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download
memory/1456-31-0x0000000000850000-0x0000000000868000-memory.dmp

Filesize
96KB

Download
memory/1752-5-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-18-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-10-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-7-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-6-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1752-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1752-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1752-3-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1752-2-0x0000000000300000-0x000000000031C000-memory.dmp

Filesize
112KB

Download
memory/1752-1-0x0000000000B20000-0x0000000000B8C000-memory.dmp

Filesize
432KB

Download
memory/2132-17-0x0000000000CE0000-0x0000000000D4C000-memory.dmp

Filesize
432KB

Download