xloader | 95265cd9d3be6a02382744a140d2fc7ef6dd5fbfec0c03acb0e37c49192d3f35

General

Target

SEGU9670620.exe
Size

708KB
MD5

f7893d4684dd47ba79b7ae6072811f00
SHA1

ff7adc2c8f2b9094361f3b2655152e4ea48e2c24
SHA256

95265cd9d3be6a02382744a140d2fc7ef6dd5fbfec0c03acb0e37c49192d3f35
SHA512

23d2c77e1e09ded7f2d0564767b57e238e07458ff8b08967acb6d179aa71415a4b9df4622005bc1c90f6cd102315a6e4c611edb87776fbe0b590f064cd8b9244

Score

10^/10

xloader zzun loader rat

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

Signatures

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

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3832-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3832-144-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3844-146-0x0000000000880000-0x00000000008AC000-memory.dmp	xloader
behavioral2/memory/3844-152-0x0000000000880000-0x00000000008AC000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

SEGU9670620.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	SEGU9670620.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

SEGU9670620.exeSEGU9670620.execmmon32.exe

description	pid	process	target process
PID 3056 set thread context of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3832 set thread context of 2232	3832	SEGU9670620.exe	Explorer.EXE
PID 3844 set thread context of 2232	3844	cmmon32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

SEGU9670620.execmmon32.exe

pid	process
3832	SEGU9670620.exe
3832	SEGU9670620.exe
3832	SEGU9670620.exe
3832	SEGU9670620.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe
3844	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

SEGU9670620.execmmon32.exe

pid process

3832 SEGU9670620.exe
3832 SEGU9670620.exe
3832 SEGU9670620.exe
3844 cmmon32.exe
3844 cmmon32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

SEGU9670620.exeExplorer.EXEcmmon32.exe

description	pid	process
Token: SeDebugPrivilege	3832	SEGU9670620.exe
Token: SeShutdownPrivilege	2232	Explorer.EXE
Token: SeCreatePagefilePrivilege	2232	Explorer.EXE
Token: SeDebugPrivilege	3844	cmmon32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

SEGU9670620.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 3056 wrote to memory of 3832	3056	SEGU9670620.exe	SEGU9670620.exe
PID 2232 wrote to memory of 3844	2232	Explorer.EXE	cmmon32.exe
PID 2232 wrote to memory of 3844	2232	Explorer.EXE	cmmon32.exe
PID 2232 wrote to memory of 3844	2232	Explorer.EXE	cmmon32.exe
PID 3844 wrote to memory of 3252	3844	cmmon32.exe	cmd.exe
PID 3844 wrote to memory of 3252	3844	cmmon32.exe	cmd.exe
PID 3844 wrote to memory of 3252	3844	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Temp\SEGU9670620.exe
"C:\Users\Admin\AppData\Local\Temp\SEGU9670620.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3056

C:\Users\Admin\AppData\Local\Temp\SEGU9670620.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3832

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1696

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SEGU9670620.exe"
3⤵
PID:3252

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2232-142-0x0000000008990000-0x0000000008AF2000-memory.dmp

Filesize
1.4MB

Download
memory/2232-151-0x0000000008B00000-0x0000000008C63000-memory.dmp

Filesize
1.4MB

Download
memory/2232-153-0x0000000008B00000-0x0000000008C63000-memory.dmp

Filesize
1.4MB

Download
memory/2232-149-0x0000000008990000-0x0000000008AF2000-memory.dmp

Filesize
1.4MB

Download
memory/3056-135-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download
memory/3056-136-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/3056-132-0x00000000009B0000-0x0000000000A68000-memory.dmp

Filesize
736KB

Download
memory/3056-134-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/3056-133-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/3252-147-0x0000000000000000-mapping.dmp

Download
memory/3832-137-0x0000000000000000-mapping.dmp

Download
memory/3832-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3832-139-0x00000000010E0000-0x000000000142A000-memory.dmp

Filesize
3.3MB

Download
memory/3832-141-0x0000000000FD0000-0x0000000000FE1000-memory.dmp

Filesize
68KB

Download
memory/3832-144-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3844-143-0x0000000000000000-mapping.dmp

Download
memory/3844-148-0x0000000002AA0000-0x0000000002DEA000-memory.dmp

Filesize
3.3MB

Download
memory/3844-150-0x00000000028C0000-0x0000000002950000-memory.dmp

Filesize
576KB

Download
memory/3844-146-0x0000000000880000-0x00000000008AC000-memory.dmp

Filesize
176KB

Download
memory/3844-152-0x0000000000880000-0x00000000008AC000-memory.dmp

Filesize
176KB

Download
memory/3844-145-0x00000000009D0000-0x00000000009DC000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads