xloader | ecd736b3ee17564a101bfdf8ff757edf53948a983ef1c1dd088cd9f214034990

General

Target

b116243ed4215cbcb325a827d11cdc68.exe
Size

245KB
MD5

b116243ed4215cbcb325a827d11cdc68
SHA1

c9ef499d8ec2966dda389ce769012b4ad6661cbc
SHA256

ecd736b3ee17564a101bfdf8ff757edf53948a983ef1c1dd088cd9f214034990
SHA512

39543aa90882920e8ba46777eb092abb678471c7cc7876d1ad98b2d4b1c6f4f50669d18c764c3b655866a682acabe2b73e1958be5a4ebfc0973574d210393ef3

Score

10^/10

xloader bs8f loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

bs8f

Decoy

atmospheraglobal.com

dontshootima.com

bestofferusde.club

yourdigitalboss.com

breskizci.com

myarrovacoastwebsite.com

reasclerk.com

efrovida.com

wsmz.net

upneett.com

loefflerforgov.com

noida.info

trndystore.com

arhaldar.online

vivibanca.tech

mykrema.com

vseserialy.online

ridgewayinsua.com

heauxland.com

bestcollegecourses.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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1236-63-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1236-64-0x000000000041D440-mapping.dmp	xloader
behavioral1/memory/1236-67-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1112-74-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

fdwfm.exefdwfm.exe

pid process

624 fdwfm.exe
1236 fdwfm.exe
Loads dropped DLL 3 IoCs

Processes:

b116243ed4215cbcb325a827d11cdc68.exefdwfm.exe

pid process

1320 b116243ed4215cbcb325a827d11cdc68.exe
1320 b116243ed4215cbcb325a827d11cdc68.exe
624 fdwfm.exe

pid	process
624	fdwfm.exe
1236	fdwfm.exe

pid	process
1320	b116243ed4215cbcb325a827d11cdc68.exe
1320	b116243ed4215cbcb325a827d11cdc68.exe
624	fdwfm.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

fdwfm.exefdwfm.exeNAPSTAT.EXE

description	pid	process	target process
PID 624 set thread context of 1236	624	fdwfm.exe	fdwfm.exe
PID 1236 set thread context of 1280	1236	fdwfm.exe	Explorer.EXE
PID 1112 set thread context of 1280	1112	NAPSTAT.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 27 IoCs

Processes:

fdwfm.exeNAPSTAT.EXE

pid	process
1236	fdwfm.exe
1236	fdwfm.exe
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE
1112	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

fdwfm.exeNAPSTAT.EXE

pid process

1236 fdwfm.exe
1236 fdwfm.exe
1236 fdwfm.exe
1112 NAPSTAT.EXE
1112 NAPSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fdwfm.exeNAPSTAT.EXE

description pid process

Token: SeDebugPrivilege 1236 fdwfm.exe
Token: SeDebugPrivilege 1112 NAPSTAT.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1280 Explorer.EXE
1280 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1280 Explorer.EXE
1280 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1236	fdwfm.exe
Token: SeDebugPrivilege	1112	NAPSTAT.EXE

pid	process
1280	Explorer.EXE
1280	Explorer.EXE

pid	process
1280	Explorer.EXE
1280	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

b116243ed4215cbcb325a827d11cdc68.exefdwfm.exeExplorer.EXENAPSTAT.EXE

description	pid	process	target process
PID 1320 wrote to memory of 624	1320	b116243ed4215cbcb325a827d11cdc68.exe	fdwfm.exe
PID 1320 wrote to memory of 624	1320	b116243ed4215cbcb325a827d11cdc68.exe	fdwfm.exe
PID 1320 wrote to memory of 624	1320	b116243ed4215cbcb325a827d11cdc68.exe	fdwfm.exe
PID 1320 wrote to memory of 624	1320	b116243ed4215cbcb325a827d11cdc68.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 624 wrote to memory of 1236	624	fdwfm.exe	fdwfm.exe
PID 1280 wrote to memory of 1112	1280	Explorer.EXE	NAPSTAT.EXE
PID 1280 wrote to memory of 1112	1280	Explorer.EXE	NAPSTAT.EXE
PID 1280 wrote to memory of 1112	1280	Explorer.EXE	NAPSTAT.EXE
PID 1280 wrote to memory of 1112	1280	Explorer.EXE	NAPSTAT.EXE
PID 1112 wrote to memory of 1072	1112	NAPSTAT.EXE	cmd.exe
PID 1112 wrote to memory of 1072	1112	NAPSTAT.EXE	cmd.exe
PID 1112 wrote to memory of 1072	1112	NAPSTAT.EXE	cmd.exe
PID 1112 wrote to memory of 1072	1112	NAPSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1280

C:\Users\Admin\AppData\Local\Temp\b116243ed4215cbcb325a827d11cdc68.exe
"C:\Users\Admin\AppData\Local\Temp\b116243ed4215cbcb325a827d11cdc68.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Local\Temp\fdwfm.exe
C:\Users\Admin\AppData\Local\Temp\fdwfm.exe C:\Users\Admin\AppData\Local\Temp\dimjwfh
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:624

C:\Users\Admin\AppData\Local\Temp\fdwfm.exe
C:\Users\Admin\AppData\Local\Temp\fdwfm.exe C:\Users\Admin\AppData\Local\Temp\dimjwfh
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1236

C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\fdwfm.exe"
3⤵
PID:1072

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

C:\Users\Admin\AppData\Local\Temp\07psh9jxx8mb5t
Filesize
163KB

MD5
2c8a5acbcf62c17a33d922b3b195e5f2

SHA1
4d8f1fd37d8a88fce9a413e50953616a2a79a4a7

SHA256
a4a062a6f2ba7f29ef472549256f378c72ce26b94466acd3a313eb6d61fbc664

SHA512
e96420d378adf2b601b067a8d6426a4544b0c42dcca850ba3e342167899f3245bd2b5d4655015e39b26e3465566c10d1576253f5c104904362ea27700fadc24c

Download Submit
C:\Users\Admin\AppData\Local\Temp\dimjwfh
Filesize
4KB

MD5
cb63c004083d462107d544017b29f953

SHA1
20896ed8b2ef0f60cd37cea225f0174ac4a4fe6b

SHA256
da7cb9a05a5d27d1d6a2817bee8478627bbaaea1dcc393cd58f32b461462d4c7

SHA512
aa0475bd3bda49f7d032a53b5dc98d8029718f9bc15b209c8cf8f5515cd59e3e20209908d8d9df139c38420f23bd69808bb1b452adb1e0576d9834ba0a465445

Download Submit
C:\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
C:\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
C:\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
\Users\Admin\AppData\Local\Temp\fdwfm.exe
Filesize
74KB

MD5
20a453ac2dfd314bf1f374bb0171681e

SHA1
cf673d84f74b343061b923a8cd90936344cb5bc4

SHA256
26a72e117f00a00dfe14730575d9e791eb783f5df77d3cdc7e736ef8493f93e0

SHA512
ba8606472ab4d03ef92689ddf993df62d0e1dc743e65821e915ef6237e9ff9e81cd7670f1da3f88748e1b66a8a80e72d9796adcb834fc159314db9af4882a642

Download Submit
memory/624-57-0x0000000000000000-mapping.dmp

Download
memory/1072-72-0x0000000000000000-mapping.dmp

Download
memory/1112-71-0x0000000000000000-mapping.dmp

Download
memory/1112-76-0x00000000003D0000-0x0000000000460000-memory.dmp

Filesize
576KB

Download
memory/1112-75-0x0000000002030000-0x0000000002333000-memory.dmp

Filesize
3.0MB

Download
memory/1112-74-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/1112-73-0x0000000000BE0000-0x0000000000C26000-memory.dmp

Filesize
280KB

Download
memory/1236-63-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1236-69-0x00000000003B0000-0x00000000003C1000-memory.dmp

Filesize
68KB

Download
memory/1236-68-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/1236-67-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1236-64-0x000000000041D440-mapping.dmp

Download
memory/1280-70-0x0000000005110000-0x00000000051E1000-memory.dmp

Filesize
836KB

Download
memory/1280-77-0x0000000002C50000-0x0000000002CF6000-memory.dmp

Filesize
664KB

Download
memory/1320-54-0x0000000075CD1000-0x0000000075CD3000-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