xloader | 777c86a17146921e06f4ac7ab01da50e0e3fa657160bcd49e8c99c63f3bf4de4

General

Target

tmp/femvv.exe
Size

412KB
MD5

0843bc912b1a4b9a4f41be4fb5f5b3ed
SHA1

68c8657051a0bb979d0c1db69be0488b844f391f
SHA256

777c86a17146921e06f4ac7ab01da50e0e3fa657160bcd49e8c99c63f3bf4de4
SHA512

aaf2031984e113c4c179b7de211dec159c89b0b758f1869f5d19576188989c1b5fc26c96ffcb2cecbcc6be32c9b2f6f916ca55a05bfc9fecd99bb4a5094d203f

Score

10^/10

xloader ef6c loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ef6c

C2

http://www.fis.photos/ef6c/

Decoy

gicaredocs.com

govusergroup.com

conversationspit.com

brondairy.com

rjtherealest.com

xn--9m1bq8wgkag3rjvb.com

mylori.net

softandcute.store

ahljsm.com

shacksolid.com

weekendmusecollection.com

gaminghallarna.net

pgonline111.online

44mpt.xyz

ambrandt.com

eddytattoo.com

blendeqes.com

upinmyfeels.com

lacucinadesign.com

docomoau.xyz

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/1992-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1992-63-0x000000000041D3D0-mapping.dmp	xloader
behavioral1/memory/1392-72-0x0000000000110000-0x0000000000139000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1124 cmd.exe

pid	process
1124	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

femvv.exefemvv.exemstsc.exe

description	pid	process	target process
PID 1320 set thread context of 1992	1320	femvv.exe	femvv.exe
PID 1992 set thread context of 1380	1992	femvv.exe	Explorer.EXE
PID 1392 set thread context of 1380	1392	mstsc.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

femvv.exefemvv.exemstsc.exe

pid	process
1320	femvv.exe
1320	femvv.exe
1992	femvv.exe
1992	femvv.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe
1392	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

femvv.exemstsc.exe

pid process

1992 femvv.exe
1992 femvv.exe
1992 femvv.exe
1392 mstsc.exe
1392 mstsc.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

femvv.exefemvv.exemstsc.exe

description pid process

Token: SeDebugPrivilege 1320 femvv.exe
Token: SeDebugPrivilege 1992 femvv.exe
Token: SeDebugPrivilege 1392 mstsc.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE

pid	process
1992	femvv.exe
1992	femvv.exe
1992	femvv.exe
1392	mstsc.exe
1392	mstsc.exe

description	pid	process
Token: SeDebugPrivilege	1320	femvv.exe
Token: SeDebugPrivilege	1992	femvv.exe
Token: SeDebugPrivilege	1392	mstsc.exe

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

femvv.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 1320 wrote to memory of 776	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 776	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 776	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 776	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 812	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 812	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 812	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 812	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1320 wrote to memory of 1992	1320	femvv.exe	femvv.exe
PID 1380 wrote to memory of 1392	1380	Explorer.EXE	mstsc.exe
PID 1380 wrote to memory of 1392	1380	Explorer.EXE	mstsc.exe
PID 1380 wrote to memory of 1392	1380	Explorer.EXE	mstsc.exe
PID 1380 wrote to memory of 1392	1380	Explorer.EXE	mstsc.exe
PID 1392 wrote to memory of 1124	1392	mstsc.exe	cmd.exe
PID 1392 wrote to memory of 1124	1392	mstsc.exe	cmd.exe
PID 1392 wrote to memory of 1124	1392	mstsc.exe	cmd.exe
PID 1392 wrote to memory of 1124	1392	mstsc.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe"
2⤵
PID:776

C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe"
2⤵
PID:812

C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1992

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1380

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:1392

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp\femvv.exe"
3⤵
- Deletes itself
PID:1124

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1124-70-0x0000000000000000-mapping.dmp

Download
memory/1320-57-0x0000000000520000-0x0000000000525000-memory.dmp

Filesize
20KB

Download
memory/1320-58-0x0000000007240000-0x0000000007241000-memory.dmp

Filesize
4KB

Download
memory/1320-59-0x0000000004690000-0x00000000046DA000-memory.dmp

Filesize
296KB

Download
memory/1320-55-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1380-67-0x0000000006410000-0x0000000006525000-memory.dmp

Filesize
1.1MB

Download
memory/1380-75-0x0000000008D60000-0x0000000008EAA000-memory.dmp

Filesize
1.3MB

Download
memory/1392-74-0x0000000001FB0000-0x0000000002040000-memory.dmp

Filesize
576KB

Download
memory/1392-73-0x0000000002140000-0x0000000002443000-memory.dmp

Filesize
3.0MB

Download
memory/1392-72-0x0000000000110000-0x0000000000139000-memory.dmp

Filesize
164KB

Download
memory/1392-71-0x0000000000780000-0x0000000000884000-memory.dmp

Filesize
1.0MB

Download
memory/1392-68-0x0000000000000000-mapping.dmp

Download
memory/1392-69-0x0000000074B21000-0x0000000074B23000-memory.dmp

Filesize
8KB

Download
memory/1992-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1992-66-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/1992-64-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/1992-63-0x000000000041D3D0-mapping.dmp

Download
memory/1992-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1992-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads