xloader | 769a104eb70d58e33f4d6ba232e5c179db1618604e62b31ceebdaf1dcae47b40

General

Target

QUOTATION '.exe
Size

885KB
MD5

2fdc9cdf35cbdd01b4f61eaa4d8d38a6
SHA1

a59e65c3ecc0c3f586bece4db3a085734c3e4da5
SHA256

c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041
SHA512

122adec9d2185d0327f4d07b466e71a55f2689216009325aa5ffd62eb8247654a8dd659031cf07197151f1c17e654a8e4f3e343a04ad61efd5def1340bf97201

Score

10^/10

xloader c2ue loader persistence rat spyware stealer

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.com

Signatures

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

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2720-127-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2720-128-0x000000000041D3A0-mapping.dmp	xloader
behavioral2/memory/3692-134-0x0000000001030000-0x0000000001059000-memory.dmp	xloader
behavioral2/memory/1676-160-0x000000000041D3A0-mapping.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\FFSDANAHUBT = "C:\\Program Files (x86)\\Drbjhn\\ubc8ftbdvd07bmx.exe"	chkdsk.exe

Executes dropped EXE 2 IoCs

Processes:

ubc8ftbdvd07bmx.exeubc8ftbdvd07bmx.exe

pid process

996 ubc8ftbdvd07bmx.exe
1676 ubc8ftbdvd07bmx.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
996	ubc8ftbdvd07bmx.exe
1676	ubc8ftbdvd07bmx.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

QUOTATION '.exeQUOTATION '.exechkdsk.exeubc8ftbdvd07bmx.exe

description	pid	process	target process
PID 2060 set thread context of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2720 set thread context of 3028	2720	QUOTATION '.exe	Explorer.EXE
PID 3692 set thread context of 3028	3692	chkdsk.exe	Explorer.EXE
PID 996 set thread context of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEchkdsk.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Drbjhn	Explorer.EXE
File created	C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe	chkdsk.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2481030822-2828258191-1606198294-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

QUOTATION '.exeQUOTATION '.exechkdsk.exe

pid	process
2060	QUOTATION '.exe
2060	QUOTATION '.exe
2720	QUOTATION '.exe
2720	QUOTATION '.exe
2720	QUOTATION '.exe
2720	QUOTATION '.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3028 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

QUOTATION '.exechkdsk.exe

pid process

2720 QUOTATION '.exe
2720 QUOTATION '.exe
2720 QUOTATION '.exe
3692 chkdsk.exe
3692 chkdsk.exe
3692 chkdsk.exe
3692 chkdsk.exe

pid	process
3028	Explorer.EXE

pid	process
2720	QUOTATION '.exe
2720	QUOTATION '.exe
2720	QUOTATION '.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe
3692	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

QUOTATION '.exeQUOTATION '.exechkdsk.exeExplorer.EXEubc8ftbdvd07bmx.exe

description	pid	process
Token: SeDebugPrivilege	2060	QUOTATION '.exe
Token: SeDebugPrivilege	2720	QUOTATION '.exe
Token: SeDebugPrivilege	3692	chkdsk.exe
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE
Token: SeDebugPrivilege	1676	ubc8ftbdvd07bmx.exe
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

QUOTATION '.exeExplorer.EXEchkdsk.exeubc8ftbdvd07bmx.exe

description	pid	process	target process
PID 2060 wrote to memory of 4072	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 4072	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 4072	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 2060 wrote to memory of 2720	2060	QUOTATION '.exe	QUOTATION '.exe
PID 3028 wrote to memory of 3692	3028	Explorer.EXE	chkdsk.exe
PID 3028 wrote to memory of 3692	3028	Explorer.EXE	chkdsk.exe
PID 3028 wrote to memory of 3692	3028	Explorer.EXE	chkdsk.exe
PID 3692 wrote to memory of 3036	3692	chkdsk.exe	cmd.exe
PID 3692 wrote to memory of 3036	3692	chkdsk.exe	cmd.exe
PID 3692 wrote to memory of 3036	3692	chkdsk.exe	cmd.exe
PID 3692 wrote to memory of 648	3692	chkdsk.exe	cmd.exe
PID 3692 wrote to memory of 648	3692	chkdsk.exe	cmd.exe
PID 3692 wrote to memory of 648	3692	chkdsk.exe	cmd.exe
PID 3028 wrote to memory of 996	3028	Explorer.EXE	ubc8ftbdvd07bmx.exe
PID 3028 wrote to memory of 996	3028	Explorer.EXE	ubc8ftbdvd07bmx.exe
PID 3028 wrote to memory of 996	3028	Explorer.EXE	ubc8ftbdvd07bmx.exe
PID 3692 wrote to memory of 1228	3692	chkdsk.exe	Firefox.exe
PID 3692 wrote to memory of 1228	3692	chkdsk.exe	Firefox.exe
PID 3692 wrote to memory of 1228	3692	chkdsk.exe	Firefox.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe
PID 996 wrote to memory of 1676	996	ubc8ftbdvd07bmx.exe	ubc8ftbdvd07bmx.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028

C:\Users\Admin\AppData\Local\Temp\QUOTATION '.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION '.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2060

C:\Users\Admin\AppData\Local\Temp\QUOTATION '.exe
"{path}"
3⤵
PID:4072

C:\Users\Admin\AppData\Local\Temp\QUOTATION '.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2720

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\QUOTATION '.exe"
3⤵
PID:3036

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:648

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1228

C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe
"C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:996

C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1676

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:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe
MD5
2fdc9cdf35cbdd01b4f61eaa4d8d38a6

SHA1
a59e65c3ecc0c3f586bece4db3a085734c3e4da5

SHA256
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041

SHA512
122adec9d2185d0327f4d07b466e71a55f2689216009325aa5ffd62eb8247654a8dd659031cf07197151f1c17e654a8e4f3e343a04ad61efd5def1340bf97201

Download Submit
C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe
MD5
2fdc9cdf35cbdd01b4f61eaa4d8d38a6

SHA1
a59e65c3ecc0c3f586bece4db3a085734c3e4da5

SHA256
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041

SHA512
122adec9d2185d0327f4d07b466e71a55f2689216009325aa5ffd62eb8247654a8dd659031cf07197151f1c17e654a8e4f3e343a04ad61efd5def1340bf97201

Download Submit
C:\Program Files (x86)\Drbjhn\ubc8ftbdvd07bmx.exe
MD5
2fdc9cdf35cbdd01b4f61eaa4d8d38a6

SHA1
a59e65c3ecc0c3f586bece4db3a085734c3e4da5

SHA256
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041

SHA512
122adec9d2185d0327f4d07b466e71a55f2689216009325aa5ffd62eb8247654a8dd659031cf07197151f1c17e654a8e4f3e343a04ad61efd5def1340bf97201

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
memory/648-139-0x0000000000000000-mapping.dmp

Download
memory/996-151-0x0000000005A30000-0x0000000005A31000-memory.dmp

Filesize
4KB

Download
memory/996-140-0x0000000000000000-mapping.dmp

Download
memory/996-152-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

Filesize
624KB

Download
memory/1228-154-0x0000000000000000-mapping.dmp

Download
memory/1228-155-0x00007FF7F4E40000-0x00007FF7F4ED3000-memory.dmp

Filesize
588KB

Download
memory/1228-156-0x000002017EE40000-0x000002017EEE4000-memory.dmp

Filesize
656KB

Download
memory/1676-160-0x000000000041D3A0-mapping.dmp

Download
memory/1676-162-0x0000000001730000-0x0000000001A50000-memory.dmp

Filesize
3.1MB

Download
memory/2060-125-0x0000000009100000-0x000000000917D000-memory.dmp

Filesize
500KB

Download
memory/2060-126-0x0000000009180000-0x00000000091AB000-memory.dmp

Filesize
172KB

Download
memory/2060-117-0x00000000051E0000-0x00000000051E1000-memory.dmp

Filesize
4KB

Download
memory/2060-118-0x0000000005780000-0x0000000005781000-memory.dmp

Filesize
4KB

Download
memory/2060-119-0x0000000005280000-0x0000000005281000-memory.dmp

Filesize
4KB

Download
memory/2060-120-0x0000000005160000-0x0000000005161000-memory.dmp

Filesize
4KB

Download
memory/2060-121-0x0000000005480000-0x0000000005481000-memory.dmp

Filesize
4KB

Download
memory/2060-122-0x0000000005C80000-0x0000000005C81000-memory.dmp

Filesize
4KB

Download
memory/2060-123-0x0000000005280000-0x000000000577E000-memory.dmp

Filesize
5.0MB

Download
memory/2060-124-0x0000000004BD0000-0x0000000004BDE000-memory.dmp

Filesize
56KB

Download
memory/2060-115-0x0000000000860000-0x0000000000861000-memory.dmp

Filesize
4KB

Download
memory/2720-128-0x000000000041D3A0-mapping.dmp

Download
memory/2720-127-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2720-129-0x0000000001810000-0x0000000001B30000-memory.dmp

Filesize
3.1MB

Download
memory/2720-130-0x0000000001770000-0x0000000001781000-memory.dmp

Filesize
68KB

Download
memory/3028-138-0x0000000005610000-0x0000000005770000-memory.dmp

Filesize
1.4MB

Download
memory/3028-131-0x00000000054F0000-0x00000000055F7000-memory.dmp

Filesize
1.0MB

Download
memory/3036-135-0x0000000000000000-mapping.dmp

Download
memory/3692-137-0x0000000005870000-0x0000000005900000-memory.dmp

Filesize
576KB

Download
memory/3692-136-0x0000000005A10000-0x0000000005D30000-memory.dmp

Filesize
3.1MB

Download
memory/3692-134-0x0000000001030000-0x0000000001059000-memory.dmp

Filesize
164KB

Download
memory/3692-133-0x00000000011E0000-0x00000000011EA000-memory.dmp

Filesize
40KB

Download
memory/3692-132-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads