xloader | 60352657d5b40d618bca9dd61bcaa201bc22807b07a583dd99a4e6cb8111ded9

General

Target

Bonifico n.4301311110000077/Bonifico n.4301311110000077.exe
Size

1020KB
MD5

3c69123d5a21d83e352662802c332cb8
SHA1

7dbfc51c8d209cca3f1f1255e9ef6ef84eb27df6
SHA256

4b0315e43226e127abc8f251de5e04dbaa17820b79251810e18494a545012266
SHA512

33a5f500ab6841b82ac2fdc3edcb947649049fa13fe0f83e991a65a58d68a86df36bbca9af1c45955f5c026ffd381e8eb7998defaf33e31b3bd4a6e2f847737c
SSDEEP

24576:wKBC7nJbsmlUu1sCwj28tfJt9B+P/qbXhuY:wKBC7lsmlxsD2y1bhuY

Score

10^/10

xloader a8si discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

a8si

Decoy

mosquitocontrolpro.com

omfgphil.com

qqkit.net

compusolutionsac.com

skynetaccess.com

helmetmoto.com

webdomoupravitel.com

thepocket-onlinelesson.xyz

stefaniehirsch.space

goalsandballs.com

xn--bro-ba-3ya.com

tomrings.com

4520oceanviewavenue.com

mamaebemorientada.com

shopwreathrails.com

restaurantestancia.com

annaquatics.info

mnarchitect.design

best-cleaner.com

jobhuizhan.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/1964-2-0x0000000000910000-0x000000000091C000-memory.dmp	CustAttr

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/676-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/676-21-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1196-26-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
1892	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 676	1964	Bonifico n.4301311110000077.exe	31
PID 676 set thread context of 1108	676	Bonifico n.4301311110000077.exe	20
PID 1196 set thread context of 1108	1196	cmd.exe	20

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	Bonifico n.4301311110000077.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
676	Bonifico n.4301311110000077.exe
676	Bonifico n.4301311110000077.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe
1196	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
676	Bonifico n.4301311110000077.exe
676	Bonifico n.4301311110000077.exe
676	Bonifico n.4301311110000077.exe
1196	cmd.exe
1196	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	676	Bonifico n.4301311110000077.exe
Token: SeDebugPrivilege	1196	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1964 wrote to memory of 676	1964	Bonifico n.4301311110000077.exe	31
PID 1108 wrote to memory of 1196	1108	Explorer.EXE	32
PID 1108 wrote to memory of 1196	1108	Explorer.EXE	32
PID 1108 wrote to memory of 1196	1108	Explorer.EXE	32
PID 1108 wrote to memory of 1196	1108	Explorer.EXE	32
PID 1196 wrote to memory of 1892	1196	cmd.exe	33
PID 1196 wrote to memory of 1892	1196	cmd.exe	33
PID 1196 wrote to memory of 1892	1196	cmd.exe	33
PID 1196 wrote to memory of 1892	1196	cmd.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Users\Admin\AppData\Local\Temp\Bonifico n.4301311110000077\Bonifico n.4301311110000077.exe
  "C:\Users\Admin\AppData\Local\Temp\Bonifico n.4301311110000077\Bonifico n.4301311110000077.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Users\Admin\AppData\Local\Temp\Bonifico n.4301311110000077\Bonifico n.4301311110000077.exe
    "C:\Users\Admin\AppData\Local\Temp\Bonifico n.4301311110000077\Bonifico n.4301311110000077.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:1196
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Bonifico n.4301311110000077\Bonifico n.4301311110000077.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1892

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/676-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/676-21-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/676-22-0x00000000002E0000-0x00000000002F1000-memory.dmp

Filesize
68KB

Download
memory/676-18-0x0000000000BF0000-0x0000000000EF3000-memory.dmp

Filesize
3.0MB

Download
memory/676-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/676-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/676-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1108-23-0x0000000007690000-0x0000000007835000-memory.dmp

Filesize
1.6MB

Download
memory/1108-20-0x0000000003C00000-0x0000000003D00000-memory.dmp

Filesize
1024KB

Download
memory/1108-27-0x0000000007690000-0x0000000007835000-memory.dmp

Filesize
1.6MB

Download
memory/1196-26-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1196-25-0x000000004A190000-0x000000004A1DC000-memory.dmp

Filesize
304KB

Download
memory/1196-24-0x000000004A190000-0x000000004A1DC000-memory.dmp

Filesize
304KB

Download
memory/1964-3-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-8-0x0000000007940000-0x00000000079AA000-memory.dmp

Filesize
424KB

Download
memory/1964-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1964-2-0x0000000000910000-0x000000000091C000-memory.dmp

Filesize
48KB

Download
memory/1964-1-0x0000000000AE0000-0x0000000000BE4000-memory.dmp

Filesize
1.0MB

Download
memory/1964-17-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-4-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-5-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1964-6-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-7-0x0000000005150000-0x0000000005200000-memory.dmp

Filesize
704KB

Download

Analysis

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