xloader | a3b44997bc49506912360e2dfbcf708a400c555efd6841246e499a83ebf12232

General

Target

B1o.exe
Size

614KB
MD5

5e3dc4e700d55cb8232bdbeade8ca8ad
SHA1

8a4c46e292dafb7db736c03f784a997b6dece9aa
SHA256

00aa65bb6c94d28f04933ebc90a56bf75d62ac3cd246afa1ef60d671a40ee978
SHA512

6b1d6e010c303ea7663f33d82255eea9f0c0c2b941301788b3e811138c1f08021b922e4a63426b2f3deb00d5b36e4d2eed3ea640a7562998836b87e2bfa02cf9

Score

10^/10

xloader chg loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

chg

C2

http://www.chiaketo.com/chg/

Decoy

worldvaypg.com

cremationprosguiding.info

counterpub.com

steamed-chicken.com

bethhavencemetery.com

wanda12.com

thejdot.com

juliusbuckley.com

realloveawaitsnow.com

healthandenergyadvisors.com

stockholmfasadputs.com

uvsafetysolutions.com

mamucosmetic.com

konoozalyemen.com

grillschalen.com

zljmys.com

paradseautos.com

home360.asia

domentemenegi37.com

farazahmadosama.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2328-116-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral2/memory/2328-118-0x000000000041D030-mapping.dmp	xloader
behavioral2/memory/2728-124-0x00000000007C0000-0x00000000007E8000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

B1o.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yjvkalu = "C:\\Users\\Public\\Libraries\\ulakvjY.url"	B1o.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

B1o.exeB1o.execolorcpl.exe

description	pid	process	target process
PID 3996 set thread context of 2328	3996	B1o.exe	B1o.exe
PID 2328 set thread context of 2964	2328	B1o.exe	Explorer.EXE
PID 2728 set thread context of 2964	2728	colorcpl.exe	Explorer.EXE

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3952 3996 WerFault.exe B1o.exe

pid	pid_target	process	target process
3952	3996	WerFault.exe	B1o.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

WerFault.exeB1o.execolorcpl.exe

pid	process
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
3952	WerFault.exe
2328	B1o.exe
2328	B1o.exe
2328	B1o.exe
2328	B1o.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe
2728	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

B1o.execolorcpl.exe

pid process

2328 B1o.exe
2328 B1o.exe
2328 B1o.exe
2728 colorcpl.exe
2728 colorcpl.exe

pid	process
2964	Explorer.EXE

pid	process
2328	B1o.exe
2328	B1o.exe
2328	B1o.exe
2728	colorcpl.exe
2728	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

WerFault.exeB1o.execolorcpl.exe

description	pid	process
Token: SeRestorePrivilege	3952	WerFault.exe
Token: SeBackupPrivilege	3952	WerFault.exe
Token: SeDebugPrivilege	3952	WerFault.exe
Token: SeDebugPrivilege	2328	B1o.exe
Token: SeDebugPrivilege	2728	colorcpl.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE

pid	process
2964	Explorer.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

B1o.exeExplorer.EXE

description	pid	process	target process
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 3996 wrote to memory of 2328	3996	B1o.exe	B1o.exe
PID 2964 wrote to memory of 2728	2964	Explorer.EXE	colorcpl.exe
PID 2964 wrote to memory of 2728	2964	Explorer.EXE	colorcpl.exe
PID 2964 wrote to memory of 2728	2964	Explorer.EXE	colorcpl.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2964

C:\Users\Admin\AppData\Local\Temp\B1o.exe
"C:\Users\Admin\AppData\Local\Temp\B1o.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 1312
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3952

C:\Users\Admin\AppData\Local\Temp\B1o.exe
"C:\Users\Admin\AppData\Local\Temp\B1o.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2328

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2728

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

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2328-116-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2328-118-0x000000000041D030-mapping.dmp

Download
memory/2328-120-0x0000000000430000-0x00000000004DE000-memory.dmp

Filesize
696KB

Download
memory/2328-119-0x0000000000A20000-0x0000000000D40000-memory.dmp

Filesize
3.1MB

Download
memory/2728-122-0x0000000000000000-mapping.dmp

Download
memory/2728-123-0x0000000000B70000-0x0000000000B89000-memory.dmp

Filesize
100KB

Download
memory/2728-124-0x00000000007C0000-0x00000000007E8000-memory.dmp

Filesize
160KB

Download
memory/2728-125-0x0000000004990000-0x0000000004CB0000-memory.dmp

Filesize
3.1MB

Download
memory/2728-126-0x0000000004810000-0x000000000489F000-memory.dmp

Filesize
572KB

Download
memory/2964-121-0x0000000002480000-0x000000000254E000-memory.dmp

Filesize
824KB

Download
memory/2964-127-0x0000000005090000-0x00000000051A6000-memory.dmp

Filesize
1.1MB

Download
memory/3996-115-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads