xloader | 5360465077025bf4eb9a35ae5b81ef55f1efaf1ccd727420e4c8b22511cea198

General

Target

Payment Copy.exe
Size

258KB
MD5

0d6e0449a278b6971826e0da856aed38
SHA1

f95ea74f5d687eaedc24a2abadb77229e4918698
SHA256

2dc7525f9ee6e09a25f840b457bf5b0ba228c4697e1f3d4b81bd2964d2eafc61
SHA512

512a7984a5c9eccb6abad93a77a58497e32192a2197bb01e82ff7e17f0c5afcc796ecb4802c14d105e9ebec2479d22be39f0a4c2832e18ffabb991c211b6a9f7

Score

10^/10

xloader b2c0 loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

C2

http://www.thesewhitevvalls.com/b2c0/

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/824-115-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/824-116-0x000000000041D4C0-mapping.dmp	xloader
behavioral2/memory/904-122-0x0000000002FA0000-0x0000000002FC9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

23 904 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

Payment Copy.exe

pid process

604 Payment Copy.exe

flow	pid	process
23	904	rundll32.exe

pid	process
604	Payment Copy.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Payment Copy.exePayment Copy.exerundll32.exe

description	pid	process	target process
PID 604 set thread context of 824	604	Payment Copy.exe	Payment Copy.exe
PID 824 set thread context of 1964	824	Payment Copy.exe	Explorer.EXE
PID 904 set thread context of 1964	904	rundll32.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

Modifies registry class 2 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-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

Payment Copy.exerundll32.exe

pid	process
824	Payment Copy.exe
824	Payment Copy.exe
824	Payment Copy.exe
824	Payment Copy.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe
904	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1964 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Payment Copy.exerundll32.exe

pid process

824 Payment Copy.exe
824 Payment Copy.exe
824 Payment Copy.exe
904 rundll32.exe
904 rundll32.exe

pid	process
1964	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 16 IoCs

Processes:

Payment Copy.exerundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	824	Payment Copy.exe
Token: SeDebugPrivilege	904	rundll32.exe
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE
Token: SeShutdownPrivilege	1964	Explorer.EXE
Token: SeCreatePagefilePrivilege	1964	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE
1964 Explorer.EXE

pid	process
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE
1964	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Payment Copy.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 604 wrote to memory of 824	604	Payment Copy.exe	Payment Copy.exe
PID 1964 wrote to memory of 904	1964	Explorer.EXE	rundll32.exe
PID 1964 wrote to memory of 904	1964	Explorer.EXE	rundll32.exe
PID 1964 wrote to memory of 904	1964	Explorer.EXE	rundll32.exe
PID 904 wrote to memory of 1216	904	rundll32.exe	cmd.exe
PID 904 wrote to memory of 1216	904	rundll32.exe	cmd.exe
PID 904 wrote to memory of 1216	904	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:604

C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:824

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:508

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:904

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
3⤵
PID:1216

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\nsx76C2.tmp\ebzkw.dll
MD5
7925977982a97c0de2c1a34af37282a8

SHA1
26b7a9bf3f1937b4153750572ca18849f56dc41c

SHA256
14f0db931a3190b4e1cc5b960cea71a1298d87ef7466bb6c24631542a2b38eed

SHA512
cb85b54c3da4a09acf26a63626880dcc4ae831d7fa77659a777aa5c2b8a91d6f96b0d70bae78b2ec6d60456869ba78847b2823f39fd6ff1b206ad06df9743623

Download Submit
memory/824-115-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/824-116-0x000000000041D4C0-mapping.dmp

Download
memory/824-117-0x0000000000A70000-0x0000000000D90000-memory.dmp

Filesize
3.1MB

Download
memory/824-118-0x00000000004E0000-0x000000000062A000-memory.dmp

Filesize
1.3MB

Download
memory/904-120-0x0000000000000000-mapping.dmp

Download
memory/904-123-0x0000000004680000-0x00000000049A0000-memory.dmp

Filesize
3.1MB

Download
memory/904-122-0x0000000002FA0000-0x0000000002FC9000-memory.dmp

Filesize
164KB

Download
memory/904-121-0x0000000000080000-0x0000000000093000-memory.dmp

Filesize
76KB

Download
memory/904-125-0x0000000004A30000-0x0000000004AC0000-memory.dmp

Filesize
576KB

Download
memory/1216-124-0x0000000000000000-mapping.dmp

Download
memory/1964-119-0x0000000009820000-0x0000000009933000-memory.dmp

Filesize
1.1MB

Download
memory/1964-126-0x00000000056D0000-0x0000000005852000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads