xloader | 9b4f227304980351439c58e4b8a29844c7929c11de71051cf7c79f348996e8b1

General

Target

rfq.exe
Size

304KB
MD5

1fefc11b33956003889da1a5337179f4
SHA1

01a2773637fa5eea87508ee768d7ccff9bd09f7b
SHA256

9b4f227304980351439c58e4b8a29844c7929c11de71051cf7c79f348996e8b1
SHA512

f5e8faf8d630acf5a5f9cdd34e2b87cb67cb8877e5790ab63626adcb7f447bc05cd2d54b728b2c613f12b656c3a8f5b7516c0c5dcbed1a3d8bbcc1c0fa7c292a

Score

10^/10

xloader unzn loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

unzn

C2

http://www.davanamays.com/unzn/

Decoy

xiulf.com

highcountrymortar.com

523561.com

marketingagency.tools

ganmovie.net

nationaalcontactpunt.com

sirrbter.com

begizas.xyz

missimi-fashion.com

munixc.info

daas.support

spaceworbc.com

faithtruthresolve.com

gymkub.com

thegrayverse.xyz

artisanmakefurniture.com

029tryy.com

ijuubx.biz

iphone13promax.club

techuniversus.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/572-57-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/572-58-0x000000000041D430-mapping.dmp	xloader
behavioral1/memory/1124-66-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1100 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

rfq.exe

pid process

1820 rfq.exe

pid	process
1100	cmd.exe

pid	process
1820	rfq.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

rfq.exerfq.execmd.exe

description	pid	process	target process
PID 1820 set thread context of 572	1820	rfq.exe	rfq.exe
PID 572 set thread context of 1212	572	rfq.exe	Explorer.EXE
PID 1124 set thread context of 1212	1124	cmd.exe	Explorer.EXE

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

rfq.execmd.exe

pid	process
572	rfq.exe
572	rfq.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe
1124	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

rfq.execmd.exe

pid process

572 rfq.exe
572 rfq.exe
572 rfq.exe
1124 cmd.exe
1124 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rfq.execmd.exe

description pid process

Token: SeDebugPrivilege 572 rfq.exe
Token: SeDebugPrivilege 1124 cmd.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE

pid	process
1212	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	572	rfq.exe
Token: SeDebugPrivilege	1124	cmd.exe

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

rfq.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1820 wrote to memory of 572	1820	rfq.exe	rfq.exe
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	cmd.exe
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	cmd.exe
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	cmd.exe
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	cmd.exe
PID 1124 wrote to memory of 1100	1124	cmd.exe	cmd.exe
PID 1124 wrote to memory of 1100	1124	cmd.exe	cmd.exe
PID 1124 wrote to memory of 1100	1124	cmd.exe	cmd.exe
PID 1124 wrote to memory of 1100	1124	cmd.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\rfq.exe
"C:\Users\Admin\AppData\Local\Temp\rfq.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1820

C:\Users\Admin\AppData\Local\Temp\rfq.exe
"C:\Users\Admin\AppData\Local\Temp\rfq.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:572

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1124

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\rfq.exe"
3⤵
- Deletes itself
PID:1100

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsdCAA0.tmp\lgyx.dll
MD5
85f315070bb4e1181d70ad3cd91fb245

SHA1
1848b67bb67f9c5235367e60f9828c0081c34a25

SHA256
fd1cedeacb764040a514e54679106f609c1724559b17ae4c051f73135190cfcb

SHA512
1868003df1d37738929d4a88bf3666a3157cc36b17f243fd034f1301872617d91104314fe6a4c66253e0c63d36e63f0a307c22810099777dbd2580415d8fb927

Download Submit
memory/572-57-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/572-58-0x000000000041D430-mapping.dmp

Download
memory/572-61-0x00000000003E0000-0x00000000003F1000-memory.dmp

Filesize
68KB

Download
memory/572-60-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1100-64-0x0000000000000000-mapping.dmp

Download
memory/1124-65-0x000000004A220000-0x000000004A26C000-memory.dmp

Filesize
304KB

Download
memory/1124-63-0x0000000000000000-mapping.dmp

Download
memory/1124-66-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1124-67-0x0000000002130000-0x0000000002433000-memory.dmp

Filesize
3.0MB

Download
memory/1124-68-0x0000000000460000-0x00000000004F0000-memory.dmp

Filesize
576KB

Download
memory/1212-62-0x0000000007500000-0x0000000007697000-memory.dmp

Filesize
1.6MB

Download
memory/1212-69-0x0000000003CB0000-0x0000000003D56000-memory.dmp

Filesize
664KB

Download
memory/1820-55-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads