xloader | 841161d0802a17b0cc2898301e6d6d952920eed6553fa66223cd2027d7614ee1

General

Target

shipping docs.exe
Size

588KB
MD5

cc77339f0c45278a70cd4a077e5847a1
SHA1

463bf7cca04184c66c27ea064efd33c415729e0f
SHA256

841161d0802a17b0cc2898301e6d6d952920eed6553fa66223cd2027d7614ee1
SHA512

e06feca2a57cc3a25dfd90047c442c30d6337b592990cb6e0fcc04d3fe32f2c4c3ca5e644a119531777226088d3a6e5e76ad3dff21ddfed11359628200360efb

Score

10^/10

xloader a8hq loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

a8hq

Decoy

veteransductcleaning.com

beajtjunkies.com

houseofascofi.com

scottsdalemediator.com

atelyadesign.com

profitcase.pro

imtokenio.club

qinglingpai.com

bigsmile-meal.net

daytonlivestream.com

aspiradores10.online

ytybs120.com

hdatelier.com

bearpierce.com

yeson28ca.com

booklearner.com

m8j9.club

mmophamthinhlegend.space

hq4a7o6zb.com

sophiadaki.online

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/4940-136-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4940-142-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/1644-145-0x00000000007F0000-0x000000000081B000-memory.dmp	xloader
behavioral2/memory/1644-149-0x00000000007F0000-0x000000000081B000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JNU4ANKPZDN = "C:\\Program Files (x86)\\Ru8tpg8t\\audiodgjntpv6.exe"	raserver.exe

Executes dropped EXE 1 IoCs

Processes:

audiodgjntpv6.exe

pid process

452 audiodgjntpv6.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

pid	process
452	audiodgjntpv6.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

shipping docs.exeshipping docs.exeraserver.exe

description	pid	process	target process
PID 3136 set thread context of 4940	3136	shipping docs.exe	shipping docs.exe
PID 4940 set thread context of 3144	4940	shipping docs.exe	Explorer.EXE
PID 1644 set thread context of 3144	1644	raserver.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

raserver.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe	raserver.exe
File opened for modification	C:\Program Files (x86)\Ru8tpg8t	Explorer.EXE
File created	C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

shipping docs.exeraserver.exe

pid	process
4940	shipping docs.exe
4940	shipping docs.exe
4940	shipping docs.exe
4940	shipping docs.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe
1644	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3144 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

shipping docs.exeraserver.exe

pid process

4940 shipping docs.exe
4940 shipping docs.exe
4940 shipping docs.exe
1644 raserver.exe
1644 raserver.exe
1644 raserver.exe
1644 raserver.exe

pid	process
3144	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

shipping docs.exeraserver.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4940	shipping docs.exe
Token: SeDebugPrivilege	1644	raserver.exe
Token: SeShutdownPrivilege	3144	Explorer.EXE
Token: SeCreatePagefilePrivilege	3144	Explorer.EXE
Token: SeShutdownPrivilege	3144	Explorer.EXE
Token: SeCreatePagefilePrivilege	3144	Explorer.EXE
Token: SeShutdownPrivilege	3144	Explorer.EXE
Token: SeCreatePagefilePrivilege	3144	Explorer.EXE
Token: SeShutdownPrivilege	3144	Explorer.EXE
Token: SeCreatePagefilePrivilege	3144	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

3144 Explorer.EXE
3144 Explorer.EXE
3144 Explorer.EXE
3144 Explorer.EXE

pid	process
3144	Explorer.EXE
3144	Explorer.EXE
3144	Explorer.EXE
3144	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

shipping docs.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3136 wrote to memory of 4940	3136	shipping docs.exe	shipping docs.exe
PID 3144 wrote to memory of 1644	3144	Explorer.EXE	raserver.exe
PID 3144 wrote to memory of 1644	3144	Explorer.EXE	raserver.exe
PID 3144 wrote to memory of 1644	3144	Explorer.EXE	raserver.exe
PID 1644 wrote to memory of 4440	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 4440	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 4440	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3344	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3344	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3344	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3092	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3092	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 3092	1644	raserver.exe	cmd.exe
PID 1644 wrote to memory of 1324	1644	raserver.exe	Firefox.exe
PID 1644 wrote to memory of 1324	1644	raserver.exe	Firefox.exe
PID 1644 wrote to memory of 1324	1644	raserver.exe	Firefox.exe
PID 3144 wrote to memory of 452	3144	Explorer.EXE	audiodgjntpv6.exe
PID 3144 wrote to memory of 452	3144	Explorer.EXE	audiodgjntpv6.exe
PID 3144 wrote to memory of 452	3144	Explorer.EXE	audiodgjntpv6.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3144

C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
"C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3136

C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4940

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Adds policy 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:1644

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
3⤵
PID:4440

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:3344

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:3092

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1324

C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe
"C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe"
2⤵
- Executes dropped EXE
PID:452

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

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe
Filesize
588KB

MD5
cc77339f0c45278a70cd4a077e5847a1

SHA1
463bf7cca04184c66c27ea064efd33c415729e0f

SHA256
841161d0802a17b0cc2898301e6d6d952920eed6553fa66223cd2027d7614ee1

SHA512
e06feca2a57cc3a25dfd90047c442c30d6337b592990cb6e0fcc04d3fe32f2c4c3ca5e644a119531777226088d3a6e5e76ad3dff21ddfed11359628200360efb

Download Submit
C:\Program Files (x86)\Ru8tpg8t\audiodgjntpv6.exe
Filesize
588KB

MD5
cc77339f0c45278a70cd4a077e5847a1

SHA1
463bf7cca04184c66c27ea064efd33c415729e0f

SHA256
841161d0802a17b0cc2898301e6d6d952920eed6553fa66223cd2027d7614ee1

SHA512
e06feca2a57cc3a25dfd90047c442c30d6337b592990cb6e0fcc04d3fe32f2c4c3ca5e644a119531777226088d3a6e5e76ad3dff21ddfed11359628200360efb

Download Submit
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

Download Submit
memory/452-155-0x0000000000000000-mapping.dmp

Download
memory/1644-141-0x0000000000000000-mapping.dmp

Download
memory/1644-144-0x00000000008A0000-0x00000000008BF000-memory.dmp

Filesize
124KB

Download
memory/1644-149-0x00000000007F0000-0x000000000081B000-memory.dmp

Filesize
172KB

Download
memory/1644-147-0x00000000027D0000-0x0000000002860000-memory.dmp

Filesize
576KB

Download
memory/1644-146-0x00000000029A0000-0x0000000002CEA000-memory.dmp

Filesize
3.3MB

Download
memory/1644-145-0x00000000007F0000-0x000000000081B000-memory.dmp

Filesize
172KB

Download
memory/3092-153-0x0000000000000000-mapping.dmp

Download
memory/3136-130-0x0000000000E60000-0x0000000000EFA000-memory.dmp

Filesize
616KB

Download
memory/3136-134-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/3136-131-0x0000000005F40000-0x00000000064E4000-memory.dmp

Filesize
5.6MB

Download
memory/3136-132-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/3136-133-0x0000000005990000-0x0000000005A2C000-memory.dmp

Filesize
624KB

Download
memory/3144-140-0x0000000007F70000-0x00000000080B4000-memory.dmp

Filesize
1.3MB

Download
memory/3144-148-0x0000000002760000-0x0000000002815000-memory.dmp

Filesize
724KB

Download
memory/3144-150-0x0000000002760000-0x0000000002815000-memory.dmp

Filesize
724KB

Download
memory/3344-151-0x0000000000000000-mapping.dmp

Download
memory/4440-143-0x0000000000000000-mapping.dmp

Download
memory/4940-142-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4940-139-0x00000000012E0000-0x00000000012F1000-memory.dmp

Filesize
68KB

Download
memory/4940-138-0x0000000001840000-0x0000000001B8A000-memory.dmp

Filesize
3.3MB

Download
memory/4940-136-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4940-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads