xloader | 65d63079af57f5ae33cb341bc94f3882d2516efc82a0373775c564759aeb862e

General

Target

New purchase Order.exe
Size

889KB
MD5

69f2093d0e8722210b96012212776ece
SHA1

910fc996781777fe1fce27b115914e6f82097391
SHA256

65d63079af57f5ae33cb341bc94f3882d2516efc82a0373775c564759aeb862e
SHA512

a05aa45f224b03a849bc488677fd79b8b251880c154bb9c0f9ab58de5deccf785b121f8f35ddd175329de09ac1d1e4add884203c71e6c4f62b470a075f578d47

Score

10^/10

xloader a8hq loader persistence rat 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

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1632-62-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1632-63-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/1632-65-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1956-72-0x00000000000D0000-0x00000000000FB000-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:

wuapp.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	wuapp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XHKDUFWHUX = "C:\\Program Files (x86)\\Pxrwhgb\\mser14iv_h.exe"	wuapp.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

672 cmd.exe

pid	process
672	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

New purchase Order.exeNew purchase Order.exewuapp.exe

description	pid	process	target process
PID 1708 set thread context of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1632 set thread context of 1208	1632	New purchase Order.exe	Explorer.EXE
PID 1956 set thread context of 1208	1956	wuapp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wuapp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Pxrwhgb\mser14iv_h.exe wuapp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Pxrwhgb\mser14iv_h.exe	wuapp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wuapp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wuapp.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

New purchase Order.exewuapp.exe

pid	process
1632	New purchase Order.exe
1632	New purchase Order.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe
1956	wuapp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

New purchase Order.exewuapp.exe

pid process

1632 New purchase Order.exe
1632 New purchase Order.exe
1632 New purchase Order.exe
1956 wuapp.exe
1956 wuapp.exe
1956 wuapp.exe
1956 wuapp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New purchase Order.exewuapp.exe

description pid process

Token: SeDebugPrivilege 1632 New purchase Order.exe
Token: SeDebugPrivilege 1956 wuapp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1632	New purchase Order.exe
Token: SeDebugPrivilege	1956	wuapp.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

New purchase Order.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1708 wrote to memory of 1632	1708	New purchase Order.exe	New purchase Order.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1208 wrote to memory of 1956	1208	Explorer.EXE	wuapp.exe
PID 1956 wrote to memory of 672	1956	wuapp.exe	cmd.exe
PID 1956 wrote to memory of 672	1956	wuapp.exe	cmd.exe
PID 1956 wrote to memory of 672	1956	wuapp.exe	cmd.exe
PID 1956 wrote to memory of 672	1956	wuapp.exe	cmd.exe
PID 1956 wrote to memory of 316	1956	wuapp.exe	Firefox.exe
PID 1956 wrote to memory of 316	1956	wuapp.exe	Firefox.exe
PID 1956 wrote to memory of 316	1956	wuapp.exe	Firefox.exe
PID 1956 wrote to memory of 316	1956	wuapp.exe	Firefox.exe
PID 1956 wrote to memory of 316	1956	wuapp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\New purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\New purchase Order.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1708

C:\Users\Admin\AppData\Local\Temp\New purchase Order.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1632

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1972

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.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:1956

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\New purchase Order.exe"
3⤵
- Deletes itself
PID:672

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:316

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

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/672-70-0x0000000000000000-mapping.dmp

Download
memory/1208-68-0x0000000005F40000-0x000000000609B000-memory.dmp

Filesize
1.4MB

Download
memory/1208-75-0x0000000002A00000-0x0000000002A9D000-memory.dmp

Filesize
628KB

Download
memory/1632-66-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/1632-67-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/1632-59-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1632-60-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1632-62-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1632-63-0x000000000041F2C0-mapping.dmp

Download
memory/1632-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1708-57-0x0000000005290000-0x0000000005314000-memory.dmp

Filesize
528KB

Download
memory/1708-54-0x00000000012E0000-0x00000000013C4000-memory.dmp

Filesize
912KB

Download
memory/1708-58-0x0000000000520000-0x0000000000552000-memory.dmp

Filesize
200KB

Download
memory/1708-56-0x00000000002A0000-0x00000000002AA000-memory.dmp

Filesize
40KB

Download
memory/1708-55-0x00000000758D1000-0x00000000758D3000-memory.dmp

Filesize
8KB

Download
memory/1956-69-0x0000000000000000-mapping.dmp

Download
memory/1956-71-0x00000000012F0000-0x00000000012FB000-memory.dmp

Filesize
44KB

Download
memory/1956-72-0x00000000000D0000-0x00000000000FB000-memory.dmp

Filesize
172KB

Download
memory/1956-73-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download
memory/1956-74-0x00000000009F0000-0x0000000000A80000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads