xloader | de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

General

Target

triage_dropped_file.exe
Size

941KB
MD5

538af9b3eb449aaf53eeaf6ecf3c4037
SHA1

edc27955b5d2388c7a2b792721941d2c270eac5a
SHA256

de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220
SHA512

a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Score

10^/10

xloader fpdi loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

fpdi

C2

http://www.walletwriter.space/fpdi/

Decoy

jencio.com

b9jty7.com

banahinvestments.com

capitolfurniture.net

jlvip1086.com

pompeyocargo.com

designbyshubhi.info

elbauldepecas.com

bracelexx.online

advanceporbrx.xyz

ruihongco.com

wipemirecord.com

goodfoodsme.com

sommpick.com

rangilugujarat.com

realestate5g.com

spunkdlashes.com

palisadestahoehousing.com

brandingsocal.com

privatejetsboston.com

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
behavioral2/memory/4080-117-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4080-118-0x000000000041D460-mapping.dmp	xloader
behavioral2/memory/584-125-0x0000000000DA0000-0x0000000000DC9000-memory.dmp	xloader
behavioral2/memory/3956-138-0x000000000041D460-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:

cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\WZVHGTBPP8 = "C:\\Program Files (x86)\\Cdzmtq4lp\\zbelg08pafc4nrw.exe"	cscript.exe

Executes dropped EXE 2 IoCs

Processes:

zbelg08pafc4nrw.exezbelg08pafc4nrw.exe

pid process

936 zbelg08pafc4nrw.exe
3956 zbelg08pafc4nrw.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
936	zbelg08pafc4nrw.exe
3956	zbelg08pafc4nrw.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

triage_dropped_file.exetriage_dropped_file.execscript.exezbelg08pafc4nrw.exe

description	pid	process	target process
PID 3492 set thread context of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 4080 set thread context of 3064	4080	triage_dropped_file.exe	Explorer.EXE
PID 584 set thread context of 3064	584	cscript.exe	Explorer.EXE
PID 936 set thread context of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe

Drops file in Program Files directory 5 IoCs

Processes:

Explorer.EXEzbelg08pafc4nrw.execscript.exe

description	ioc	process
File created	C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
File opened for modification	C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe	cscript.exe
File opened for modification	C:\Program Files (x86)\Cdzmtq4lp	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

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

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

triage_dropped_file.execscript.exezbelg08pafc4nrw.exe

pid	process
4080	triage_dropped_file.exe
4080	triage_dropped_file.exe
4080	triage_dropped_file.exe
4080	triage_dropped_file.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
584	cscript.exe
3956	zbelg08pafc4nrw.exe
3956	zbelg08pafc4nrw.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3064 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

triage_dropped_file.execscript.exe

pid process

4080 triage_dropped_file.exe
4080 triage_dropped_file.exe
4080 triage_dropped_file.exe
584 cscript.exe
584 cscript.exe
584 cscript.exe
584 cscript.exe

pid	process
3064	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

triage_dropped_file.execscript.exeExplorer.EXEzbelg08pafc4nrw.exe

description	pid	process
Token: SeDebugPrivilege	4080	triage_dropped_file.exe
Token: SeDebugPrivilege	584	cscript.exe
Token: SeShutdownPrivilege	3064	Explorer.EXE
Token: SeCreatePagefilePrivilege	3064	Explorer.EXE
Token: SeShutdownPrivilege	3064	Explorer.EXE
Token: SeCreatePagefilePrivilege	3064	Explorer.EXE
Token: SeShutdownPrivilege	3064	Explorer.EXE
Token: SeCreatePagefilePrivilege	3064	Explorer.EXE
Token: SeDebugPrivilege	3956	zbelg08pafc4nrw.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

triage_dropped_file.exezbelg08pafc4nrw.exe

pid process

3492 triage_dropped_file.exe
936 zbelg08pafc4nrw.exe

pid	process
3492	triage_dropped_file.exe
936	zbelg08pafc4nrw.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

triage_dropped_file.exeExplorer.EXEcscript.exezbelg08pafc4nrw.exe

description	pid	process	target process
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3492 wrote to memory of 4080	3492	triage_dropped_file.exe	triage_dropped_file.exe
PID 3064 wrote to memory of 584	3064	Explorer.EXE	cscript.exe
PID 3064 wrote to memory of 584	3064	Explorer.EXE	cscript.exe
PID 3064 wrote to memory of 584	3064	Explorer.EXE	cscript.exe
PID 584 wrote to memory of 1120	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 1120	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 1120	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 3328	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 3328	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 3328	584	cscript.exe	cmd.exe
PID 584 wrote to memory of 3296	584	cscript.exe	Firefox.exe
PID 584 wrote to memory of 3296	584	cscript.exe	Firefox.exe
PID 3064 wrote to memory of 936	3064	Explorer.EXE	zbelg08pafc4nrw.exe
PID 3064 wrote to memory of 936	3064	Explorer.EXE	zbelg08pafc4nrw.exe
PID 3064 wrote to memory of 936	3064	Explorer.EXE	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 936 wrote to memory of 3956	936	zbelg08pafc4nrw.exe	zbelg08pafc4nrw.exe
PID 584 wrote to memory of 3296	584	cscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

cscript.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cscript.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:3064

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3492

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4080

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.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
- System policy modification
PID:584

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
PID:1120

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:3328

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3296

C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe
"C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:936

C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe
"C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Download Submit
C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Download Submit
C:\Program Files (x86)\Cdzmtq4lp\zbelg08pafc4nrw.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

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

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
memory/584-127-0x0000000005160000-0x0000000005480000-memory.dmp

Filesize
3.1MB

Download
memory/584-128-0x00000000050B0000-0x0000000005140000-memory.dmp

Filesize
576KB

Download
memory/584-123-0x0000000000000000-mapping.dmp

Download
memory/584-124-0x0000000001090000-0x00000000010B7000-memory.dmp

Filesize
156KB

Download
memory/584-125-0x0000000000DA0000-0x0000000000DC9000-memory.dmp

Filesize
164KB

Download
memory/936-132-0x0000000000000000-mapping.dmp

Download
memory/1120-126-0x0000000000000000-mapping.dmp

Download
memory/3064-122-0x0000000000930000-0x00000000009DF000-memory.dmp

Filesize
700KB

Download
memory/3064-129-0x0000000005E20000-0x0000000005F2D000-memory.dmp

Filesize
1.1MB

Download
memory/3328-130-0x0000000000000000-mapping.dmp

Download
memory/3492-115-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3492-116-0x00000000001D0000-0x00000000001DA000-memory.dmp

Filesize
40KB

Download
memory/3956-138-0x000000000041D460-mapping.dmp

Download
memory/3956-140-0x00000000009D0000-0x0000000000CF0000-memory.dmp

Filesize
3.1MB

Download
memory/4080-121-0x00000000009D0000-0x00000000009E1000-memory.dmp

Filesize
68KB

Download
memory/4080-120-0x0000000000A10000-0x0000000000D30000-memory.dmp

Filesize
3.1MB

Download
memory/4080-118-0x000000000041D460-mapping.dmp

Download
memory/4080-117-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads