xloader | a9aa59bed8eb3e4839b215c072549c359c3867b238e65c4bf98a5f274d2808bb

General

Target

tmp.exe
Size

635KB
MD5

2648e55802ea0888fea42a50ff7443a9
SHA1

1de56299bfca5e0417263ba8954a925f6d5cf8fb
SHA256

a9aa59bed8eb3e4839b215c072549c359c3867b238e65c4bf98a5f274d2808bb
SHA512

ecbcfd564144f225250309786f1e828383e8e524c75b548990b6aa739e8cf794ac7d076fa93e8da3abc512ec747092623cc44676de25fb373163754750b8a08f

Score

10^/10

xloader loader persistence rat spyware stealer suricata

Malware Config

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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4344-137-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/4344-143-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/4184-145-0x0000000000330000-0x000000000035D000-memory.dmp	xloader
behavioral2/memory/4184-150-0x0000000000330000-0x000000000035D000-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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation tmp.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	tmp.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WV1PKBMXC = "C:\\Program Files (x86)\\Yljfx2pj\\nlvh3t7h-zsdyfo.exe"	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.execmd.exe

description	pid	process	target process
PID 4224 set thread context of 4344	4224	tmp.exe	tmp.exe
PID 4344 set thread context of 2032	4344	tmp.exe	Explorer.EXE
PID 4184 set thread context of 2032	4184	cmd.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmd.exe

description ioc process

File opened for modification C:\Program Files (x86)\Yljfx2pj\nlvh3t7h-zsdyfo.exe cmd.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Yljfx2pj\nlvh3t7h-zsdyfo.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

tmp.execmd.exe

pid	process
4344	tmp.exe
4344	tmp.exe
4344	tmp.exe
4344	tmp.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe
4184	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2032 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

tmp.execmd.exe

pid process

4344 tmp.exe
4344 tmp.exe
4344 tmp.exe
4184 cmd.exe
4184 cmd.exe
4184 cmd.exe
4184 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.execmd.exe

description pid process

Token: SeDebugPrivilege 4344 tmp.exe
Token: SeDebugPrivilege 4184 cmd.exe

pid	process
2032	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4344	tmp.exe
Token: SeDebugPrivilege	4184	cmd.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

tmp.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 4224 wrote to memory of 4344	4224	tmp.exe	tmp.exe
PID 2032 wrote to memory of 4184	2032	Explorer.EXE	cmd.exe
PID 2032 wrote to memory of 4184	2032	Explorer.EXE	cmd.exe
PID 2032 wrote to memory of 4184	2032	Explorer.EXE	cmd.exe
PID 4184 wrote to memory of 3188	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 3188	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 3188	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 4968	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 4968	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 4968	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 384	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 384	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 384	4184	cmd.exe	cmd.exe
PID 4184 wrote to memory of 4284	4184	cmd.exe	Firefox.exe
PID 4184 wrote to memory of 4284	4184	cmd.exe	Firefox.exe
PID 4184 wrote to memory of 4284	4184	cmd.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4224

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4344

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:5108

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:5080

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:852

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:5116

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1780

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1928

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1152

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4184

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
PID:3188

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4968

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:384

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

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memory/384-154-0x0000000000000000-mapping.dmp

Download
memory/2032-141-0x00000000087F0000-0x000000000898C000-memory.dmp

Filesize
1.6MB

Download
memory/2032-151-0x00000000032D0000-0x00000000033E2000-memory.dmp

Filesize
1.1MB

Download
memory/2032-149-0x00000000032D0000-0x00000000033E2000-memory.dmp

Filesize
1.1MB

Download
memory/3188-146-0x0000000000000000-mapping.dmp

Download
memory/4184-144-0x00000000002D0000-0x000000000032A000-memory.dmp

Filesize
360KB

Download
memory/4184-145-0x0000000000330000-0x000000000035D000-memory.dmp

Filesize
180KB

Download
memory/4184-150-0x0000000000330000-0x000000000035D000-memory.dmp

Filesize
180KB

Download
memory/4184-148-0x0000000000DC0000-0x0000000000E50000-memory.dmp

Filesize
576KB

Download
memory/4184-142-0x0000000000000000-mapping.dmp

Download
memory/4184-147-0x0000000000EE0000-0x000000000122A000-memory.dmp

Filesize
3.3MB

Download
memory/4224-130-0x0000000000E80000-0x0000000000F24000-memory.dmp

Filesize
656KB

Download
memory/4224-135-0x0000000009960000-0x00000000099C6000-memory.dmp

Filesize
408KB

Download
memory/4224-134-0x0000000009850000-0x00000000098EC000-memory.dmp

Filesize
624KB

Download
memory/4224-133-0x0000000005790000-0x000000000579A000-memory.dmp

Filesize
40KB

Download
memory/4224-132-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/4224-131-0x0000000005DF0000-0x0000000006394000-memory.dmp

Filesize
5.6MB

Download
memory/4344-143-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4344-136-0x0000000000000000-mapping.dmp

Download
memory/4344-139-0x00000000018E0000-0x0000000001C2A000-memory.dmp

Filesize
3.3MB

Download
memory/4344-137-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4344-140-0x0000000001440000-0x0000000001451000-memory.dmp

Filesize
68KB

Download
memory/4968-152-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads