xloader | 7c2cab5c4ff191f935293bf1625e73da3fd2b025b335fe075a186e8c9672dc45

General

Target

ur0Wh1IXZqT3XDP.exe
Size

495KB
MD5

389205cb7d0e4aff8ced73933cb8c540
SHA1

7feda5387f15dd58f5479184c698811fd829604e
SHA256

b4a7371bb84b4f72e390e8f247a7978f2c2ff173d555261442151ef918cdb969
SHA512

0ef5eb7aec2c239ba58ede1149874f2e4795ef33edad824e289d37c9b7bf639262306ac569be8b832c69a90eaabb3bda812efc009fb2a9b11eb41cc21cfb7703

Score

10^/10

xloader zzun loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

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
behavioral2/memory/3604-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3604-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1160-144-0x0000000000390000-0x00000000003BC000-memory.dmp	xloader
behavioral2/memory/1160-150-0x0000000000390000-0x00000000003BC000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ur0Wh1IXZqT3XDP.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	ur0Wh1IXZqT3XDP.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ur0Wh1IXZqT3XDP.exeur0Wh1IXZqT3XDP.exemsdt.exe

description	pid	process	target process
PID 1188 set thread context of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 3604 set thread context of 2800	3604	ur0Wh1IXZqT3XDP.exe	Explorer.EXE
PID 1160 set thread context of 2800	1160	msdt.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsdt.exe

pid	process
3604	ur0Wh1IXZqT3XDP.exe
3604	ur0Wh1IXZqT3XDP.exe
3604	ur0Wh1IXZqT3XDP.exe
3604	ur0Wh1IXZqT3XDP.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe
1160	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2800 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsdt.exe

pid process

3604 ur0Wh1IXZqT3XDP.exe
3604 ur0Wh1IXZqT3XDP.exe
3604 ur0Wh1IXZqT3XDP.exe
1160 msdt.exe
1160 msdt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ur0Wh1IXZqT3XDP.exemsdt.exe

description pid process

Token: SeDebugPrivilege 3604 ur0Wh1IXZqT3XDP.exe
Token: SeDebugPrivilege 1160 msdt.exe

pid	process
2800	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	3604	ur0Wh1IXZqT3XDP.exe
Token: SeDebugPrivilege	1160	msdt.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ur0Wh1IXZqT3XDP.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 1188 wrote to memory of 3604	1188	ur0Wh1IXZqT3XDP.exe	ur0Wh1IXZqT3XDP.exe
PID 2800 wrote to memory of 1160	2800	Explorer.EXE	msdt.exe
PID 2800 wrote to memory of 1160	2800	Explorer.EXE	msdt.exe
PID 2800 wrote to memory of 1160	2800	Explorer.EXE	msdt.exe
PID 1160 wrote to memory of 1264	1160	msdt.exe	cmd.exe
PID 1160 wrote to memory of 1264	1160	msdt.exe	cmd.exe
PID 1160 wrote to memory of 1264	1160	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2800

C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe
"C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1188

C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3604

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1160

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ur0Wh1IXZqT3XDP.exe"
3⤵
PID:1264

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1160-150-0x0000000000390000-0x00000000003BC000-memory.dmp

Filesize
176KB

Download
memory/1160-146-0x00000000027F0000-0x0000000002B3A000-memory.dmp

Filesize
3.3MB

Download
memory/1160-143-0x0000000000460000-0x00000000004B7000-memory.dmp

Filesize
348KB

Download
memory/1160-144-0x0000000000390000-0x00000000003BC000-memory.dmp

Filesize
176KB

Download
memory/1160-142-0x0000000000000000-mapping.dmp

Download
memory/1160-148-0x0000000002490000-0x0000000002520000-memory.dmp

Filesize
576KB

Download
memory/1188-134-0x0000000005640000-0x000000000564A000-memory.dmp

Filesize
40KB

Download
memory/1188-130-0x0000000000C10000-0x0000000000C92000-memory.dmp

Filesize
520KB

Download
memory/1188-133-0x0000000005750000-0x00000000057EC000-memory.dmp

Filesize
624KB

Download
memory/1188-132-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/1188-131-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/1264-145-0x0000000000000000-mapping.dmp

Download
memory/2800-151-0x0000000008790000-0x00000000088A3000-memory.dmp

Filesize
1.1MB

Download
memory/2800-149-0x0000000008790000-0x00000000088A3000-memory.dmp

Filesize
1.1MB

Download
memory/2800-141-0x0000000008680000-0x000000000878C000-memory.dmp

Filesize
1.0MB

Download
memory/2800-147-0x0000000008680000-0x000000000878C000-memory.dmp

Filesize
1.0MB

Download
memory/3604-135-0x0000000000000000-mapping.dmp

Download
memory/3604-140-0x0000000001440000-0x0000000001451000-memory.dmp

Filesize
68KB

Download
memory/3604-139-0x0000000001A70000-0x0000000001DBA000-memory.dmp

Filesize
3.3MB

Download
memory/3604-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3604-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads