xloader | ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e

General

Target

payload.exe
Size

297KB
MD5

aefc9702ff5d6d9064ec8e5ea82e4870
SHA1

716ad70dc07a6b7d3c46209de8627bf3f3535361
SHA256

ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e
SHA512

e5180f0d131111627300dd3b61abae59cf77e0d2a4aa50d9b22dec1c270a865caed5fa4130174930ae2810584c4169e9bf56a0b597401014737d60b250580b55

Score

10^/10

xloader uar3 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

uar3

Decoy

sgadvocats.com

mjscannabus.com

hilldaley.com

ksdollhouse.com

hotgiftboutique.com

purebloodsmeet.com

relaunched.info

cap-glove.com

productcollection.store

fulikyy.xyz

remoteaviationjobs.com

bestcleancrystal.com

virtualorganizationpartner.com

bookgocar.com

hattuafhv.quest

makonigroup.com

officecom-myaccount.com

malgorzata-lac.com

e-learningeducators.com

hygilaur.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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/964-57-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/520-63-0x0000000000170000-0x0000000000199000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1056 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

payload.exe

pid process

1756 payload.exe

pid	process
1056	cmd.exe

pid	process
1756	payload.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

payload.exepayload.execscript.exe

description	pid	process	target process
PID 1756 set thread context of 964	1756	payload.exe	payload.exe
PID 964 set thread context of 1200	964	payload.exe	Explorer.EXE
PID 520 set thread context of 1200	520	cscript.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:

payload.execscript.exe

pid	process
964	payload.exe
964	payload.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe
520	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

payload.execscript.exe

pid process

964 payload.exe
964 payload.exe
964 payload.exe
520 cscript.exe
520 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

payload.execscript.exe

description pid process

Token: SeDebugPrivilege 964 payload.exe
Token: SeDebugPrivilege 520 cscript.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE

pid	process
1200	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	964	payload.exe
Token: SeDebugPrivilege	520	cscript.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

payload.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1756 wrote to memory of 964	1756	payload.exe	payload.exe
PID 1200 wrote to memory of 520	1200	Explorer.EXE	cscript.exe
PID 1200 wrote to memory of 520	1200	Explorer.EXE	cscript.exe
PID 1200 wrote to memory of 520	1200	Explorer.EXE	cscript.exe
PID 1200 wrote to memory of 520	1200	Explorer.EXE	cscript.exe
PID 520 wrote to memory of 1056	520	cscript.exe	cmd.exe
PID 520 wrote to memory of 1056	520	cscript.exe	cmd.exe
PID 520 wrote to memory of 1056	520	cscript.exe	cmd.exe
PID 520 wrote to memory of 1056	520	cscript.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:1200

C:\Users\Admin\AppData\Local\Temp\payload.exe
"C:\Users\Admin\AppData\Local\Temp\payload.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756

C:\Users\Admin\AppData\Local\Temp\payload.exe
"C:\Users\Admin\AppData\Local\Temp\payload.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:964

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:520

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\payload.exe"
3⤵
- Deletes itself
PID:1056

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\nsyDFD6.tmp\qhkurpf.dll
MD5
4b585786f7c4954b6ec5fa47486c3e01

SHA1
def671ab058b9db6bb436c57be2ed88b8f80580c

SHA256
c553442735f0cf507ae1db7e5beb9dfd91e6e26759ba4b064cb284a684ed8aa9

SHA512
38585b0152d9a2d74ce47caaf1d2eb83e314e2930268ca607ad40352b10b5669fbb2fc4700d653e19273f01e66f54a71b0e543f5e707d94913ec92a69633c29a

Download Submit
memory/520-62-0x00000000004A0000-0x00000000004C2000-memory.dmp

Filesize
136KB

Download
memory/520-63-0x0000000000170000-0x0000000000199000-memory.dmp

Filesize
164KB

Download
memory/520-64-0x00000000020E0000-0x00000000023E3000-memory.dmp

Filesize
3.0MB

Download
memory/520-65-0x0000000000410000-0x00000000004A0000-memory.dmp

Filesize
576KB

Download
memory/964-57-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/964-60-0x0000000000350000-0x0000000000361000-memory.dmp

Filesize
68KB

Download
memory/964-59-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1200-61-0x0000000007390000-0x0000000007516000-memory.dmp

Filesize
1.5MB

Download
memory/1200-66-0x00000000077C0000-0x0000000007917000-memory.dmp

Filesize
1.3MB

Download
memory/1756-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads