xloader | b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40

General

Target

d0c7488tr739.exe
Size

253KB
MD5

326879d0158d92efc02be27a534e2af4
SHA1

f0a4055436bf4ab684f0ff38a0af2d87ef792069
SHA256

b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40
SHA512

950cc47ac43379abe7ba63de202543748d414969f48996e5e7082eaf79f27c9767980354c0483803881cbe88ccbee18a28037d04142274ff2aa14a394003a389

Score

10^/10

xloader u5eh loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

u5eh

C2

http://www.retonamoss.com/u5eh/

Decoy

tryafaq.com

bobcathntshop.com

oglead.com

026skz.xyz

brasbux.com

adna17.com

noveltyrofjiy.xyz

realestatecompanys.com

leman-web.com

df5686.com

jonathonhawkins.com

juliedominyfloralartistry.com

classyeventsco.com

aquaticatt.com

iotworld.xyz

hoc8.com

disposablediapers.store

peregovorim.online

advancebits.club

getaburialplan.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/1732-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1732-57-0x000000000041D3E0-mapping.dmp	xloader
behavioral1/memory/756-65-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1188 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

d0c7488tr739.exe

pid process

1116 d0c7488tr739.exe

pid	process
1188	cmd.exe

pid	process
1116	d0c7488tr739.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

d0c7488tr739.exed0c7488tr739.execmstp.exe

description	pid	process	target process
PID 1116 set thread context of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1732 set thread context of 1336	1732	d0c7488tr739.exe	Explorer.EXE
PID 756 set thread context of 1336	756	cmstp.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 31 IoCs

Processes:

d0c7488tr739.execmstp.exe

pid	process
1732	d0c7488tr739.exe
1732	d0c7488tr739.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe
756	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1336 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

d0c7488tr739.execmstp.exe

pid process

1732 d0c7488tr739.exe
1732 d0c7488tr739.exe
1732 d0c7488tr739.exe
756 cmstp.exe
756 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d0c7488tr739.execmstp.exe

description pid process

Token: SeDebugPrivilege 1732 d0c7488tr739.exe
Token: SeDebugPrivilege 756 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1336 Explorer.EXE
1336 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1336 Explorer.EXE
1336 Explorer.EXE

pid	process
1336	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1732	d0c7488tr739.exe
Token: SeDebugPrivilege	756	cmstp.exe

pid	process
1336	Explorer.EXE
1336	Explorer.EXE

pid	process
1336	Explorer.EXE
1336	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

d0c7488tr739.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1116 wrote to memory of 1732	1116	d0c7488tr739.exe	d0c7488tr739.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 1336 wrote to memory of 756	1336	Explorer.EXE	cmstp.exe
PID 756 wrote to memory of 1188	756	cmstp.exe	cmd.exe
PID 756 wrote to memory of 1188	756	cmstp.exe	cmd.exe
PID 756 wrote to memory of 1188	756	cmstp.exe	cmd.exe
PID 756 wrote to memory of 1188	756	cmstp.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:1336

C:\Users\Admin\AppData\Local\Temp\d0c7488tr739.exe
"C:\Users\Admin\AppData\Local\Temp\d0c7488tr739.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1116

C:\Users\Admin\AppData\Local\Temp\d0c7488tr739.exe
"C:\Users\Admin\AppData\Local\Temp\d0c7488tr739.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\d0c7488tr739.exe"
3⤵
- Deletes itself
PID:1188

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsiCBF7.tmp\jmmnbh.dll
MD5
3fe6933172cb97cd2f22413f795660ba

SHA1
1ee9dfeb2329eb108ec654db3e87f1e698e0e731

SHA256
f0ed5b1f290b36168d3cdce44b29a92dde64b558b350576431983f902fedeb8e

SHA512
e946a1b33031678108f325d4464b6fd6ff889cd397c2eb2e51347f0a9e33d3837ca2b020cfb9d34bd24ae7a4864b0549f2ab97fc560f39f00c0b82b17f054052

Download Submit
memory/756-64-0x0000000000C40000-0x0000000000C58000-memory.dmp

Filesize
96KB

Download
memory/756-68-0x0000000000820000-0x00000000008B0000-memory.dmp

Filesize
576KB

Download
memory/756-66-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/756-65-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/756-62-0x0000000000000000-mapping.dmp

Download
memory/1116-54-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1188-67-0x0000000000000000-mapping.dmp

Download
memory/1336-61-0x00000000065F0000-0x000000000670F000-memory.dmp

Filesize
1.1MB

Download
memory/1336-69-0x00000000068F0000-0x0000000006A53000-memory.dmp

Filesize
1.4MB

Download
memory/1732-60-0x00000000002C0000-0x00000000002D1000-memory.dmp

Filesize
68KB

Download
memory/1732-59-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/1732-57-0x000000000041D3E0-mapping.dmp

Download
memory/1732-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads