xloader | 7bfabb3e53f70e2ad39155a8af8d7e27a07ec01b0ba8faed52cb569e4f78142f

General

Target

vbc.exe
Size

515KB
MD5

a8538dba14e963ac7894257f7466bc06
SHA1

d5de28b9a2f41519f8ae6fc2be6f9ee75569e192
SHA256

7bfabb3e53f70e2ad39155a8af8d7e27a07ec01b0ba8faed52cb569e4f78142f
SHA512

04da55fb7dcd87538e284a929b79427bf72241fea7a291f3650853442f889cf21de0352f7a381bae316df852f3b0ea87e5eb9ce8e3e509a27ab34da0b78030ba

Score

10^/10

xloader ea0r loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ea0r

C2

http://www.asiapubz-hk.com/ea0r/

Decoy

lionheartcreativestudios.com

konzertmanagement.com

blackpanther.online

broychim-int.com

takut18.com

txstarsolar.com

herdsherpa.com

igorshestakov.com

shinesbox.com

reflectpkljlt.xyz

oiltoolshub.com

viralmoneychallenge.com

changingalphastrategies.com

mecitiris.com

rdadmin.online

miniambiente.com

kominarcine.com

pino-almond.com

heihit.xyz

junqi888.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1308-116-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1308-117-0x000000000041D410-mapping.dmp	xloader
behavioral2/memory/2180-125-0x00000000029B0000-0x00000000029D9000-memory.dmp	xloader

Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid process

3760 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
3760	vbc.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exemstsc.exe

description	pid	process	target process
PID 3760 set thread context of 1308	3760	vbc.exe	vbc.exe
PID 1308 set thread context of 3064	1308	vbc.exe	Explorer.EXE
PID 2180 set thread context of 3064	2180	mstsc.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 58 IoCs

Processes:

vbc.exemstsc.exe

pid	process
1308	vbc.exe
1308	vbc.exe
1308	vbc.exe
1308	vbc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe
2180	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3064 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exemstsc.exe

pid process

1308 vbc.exe
1308 vbc.exe
1308 vbc.exe
2180 mstsc.exe
2180 mstsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exemstsc.exe

description pid process

Token: SeDebugPrivilege 1308 vbc.exe
Token: SeDebugPrivilege 2180 mstsc.exe

pid	process
3064	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1308	vbc.exe
Token: SeDebugPrivilege	2180	mstsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

vbc.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3760 wrote to memory of 1308	3760	vbc.exe	vbc.exe
PID 3064 wrote to memory of 2180	3064	Explorer.EXE	mstsc.exe
PID 3064 wrote to memory of 2180	3064	Explorer.EXE	mstsc.exe
PID 3064 wrote to memory of 2180	3064	Explorer.EXE	mstsc.exe
PID 2180 wrote to memory of 3780	2180	mstsc.exe	cmd.exe
PID 2180 wrote to memory of 3780	2180	mstsc.exe	cmd.exe
PID 2180 wrote to memory of 3780	2180	mstsc.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3064

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3760

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1308

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
PID:3780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

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\nsyF203.tmp\sodxedmub.dll
MD5
0dce769f700f91a640a0ac88b9f52cc0

SHA1
593939ad9b4c96d84fb8649bd81a670e8036db19

SHA256
8ea5809102a56af3cbe2dead5d07c4a740afac59ae44f908dd73dbd2314a6018

SHA512
b1546a0ec312e6f4cf50b01c15fd37d911a39eea6e465be113c9e38f87af4f5cde649bdf8939496a7aaceec05988de1bc9249fce8ddc0fce3d1c2f94ead33a52

Download Submit
memory/1308-116-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1308-117-0x000000000041D410-mapping.dmp

Download
memory/1308-120-0x0000000000DC0000-0x0000000000DD1000-memory.dmp

Filesize
68KB

Download
memory/1308-119-0x00000000009A0000-0x0000000000CC0000-memory.dmp

Filesize
3.1MB

Download
memory/2180-122-0x0000000000000000-mapping.dmp

Download
memory/2180-125-0x00000000029B0000-0x00000000029D9000-memory.dmp

Filesize
164KB

Download
memory/2180-124-0x00000000003B0000-0x00000000006AC000-memory.dmp

Filesize
3.0MB

Download
memory/2180-126-0x0000000004930000-0x0000000004C50000-memory.dmp

Filesize
3.1MB

Download
memory/2180-127-0x0000000004820000-0x00000000048B0000-memory.dmp

Filesize
576KB

Download
memory/3064-121-0x00000000027C0000-0x0000000002890000-memory.dmp

Filesize
832KB

Download
memory/3064-128-0x0000000005C90000-0x0000000005DEF000-memory.dmp

Filesize
1.4MB

Download
memory/3780-123-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads