xloader | a63e0773595f36b7ada59361abb3b0df6bf684188170da64325f7224265ecc62

General

Target

tmp/femm.exe
Size

327KB
MD5

1fe6bb3b680c6b3efe92374bd5ea8b85
SHA1

356c0cc6df02a6fa30705e918141186bd0c78475
SHA256

a63e0773595f36b7ada59361abb3b0df6bf684188170da64325f7224265ecc62
SHA512

a1c8cd4bf5527facfb859fb9b29c24f4f62246a17bbedfab52f09c9ef1f59c4ac57c03e776da67055dbfc3911e0e81ae36a5fb7158a2c55fb1d17ab9af6f5e41

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/1240-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1240-63-0x000000000041D3D0-mapping.dmp	xloader
behavioral1/memory/1668-72-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1412 cmd.exe

pid	process
1412	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

femm.exefemm.execmstp.exe

description	pid	process	target process
PID 1624 set thread context of 1240	1624	femm.exe	femm.exe
PID 1240 set thread context of 1404	1240	femm.exe	Explorer.EXE
PID 1668 set thread context of 1404	1668	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

femm.execmstp.exe

pid	process
1240	femm.exe
1240	femm.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

femm.execmstp.exe

pid process

1240 femm.exe
1240 femm.exe
1240 femm.exe
1668 cmstp.exe
1668 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

femm.execmstp.exe

description pid process

Token: SeDebugPrivilege 1240 femm.exe
Token: SeDebugPrivilege 1668 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
1404 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
1404 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1240	femm.exe
Token: SeDebugPrivilege	1668	cmstp.exe

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

femm.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1624 wrote to memory of 1240	1624	femm.exe	femm.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 1668	1404	Explorer.EXE	cmstp.exe
PID 1668 wrote to memory of 1412	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1412	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1412	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1412	1668	cmstp.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:1404

C:\Users\Admin\AppData\Local\Temp\tmp\femm.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femm.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1624

C:\Users\Admin\AppData\Local\Temp\tmp\femm.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\femm.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1240

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:1668

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp\femm.exe"
3⤵
- Deletes itself
PID:1412

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1240-64-0x0000000000B30000-0x0000000000E33000-memory.dmp

Filesize
3.0MB

Download
memory/1240-66-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/1240-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1240-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1240-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1240-63-0x000000000041D3D0-mapping.dmp

Download
memory/1404-75-0x0000000006AF0000-0x0000000006C0B000-memory.dmp

Filesize
1.1MB

Download
memory/1404-67-0x0000000004EC0000-0x0000000004F9C000-memory.dmp

Filesize
880KB

Download
memory/1412-70-0x0000000000000000-mapping.dmp

Download
memory/1624-59-0x00000000009E0000-0x0000000000A2B000-memory.dmp

Filesize
300KB

Download
memory/1624-54-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1624-58-0x00000000003D0000-0x00000000003D5000-memory.dmp

Filesize
20KB

Download
memory/1624-57-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/1624-56-0x0000000076C61000-0x0000000076C63000-memory.dmp

Filesize
8KB

Download
memory/1668-68-0x0000000000000000-mapping.dmp

Download
memory/1668-71-0x0000000000290000-0x00000000002A8000-memory.dmp

Filesize
96KB

Download
memory/1668-72-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1668-73-0x0000000001F80000-0x0000000002283000-memory.dmp

Filesize
3.0MB

Download
memory/1668-74-0x0000000000510000-0x00000000005A0000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads