xloader | 413e8df7f149aa643aaa1ef70e953ab2112827b652f1cf05b6420ed6a119962d

General

Target

Se adjunta el pedido, proforma.exe
Size

714KB
MD5

deea7525a547ed7a9ef6c81b04478f3e
SHA1

b29c935913a55c9bad3979d05d97a6ebda871604
SHA256

413e8df7f149aa643aaa1ef70e953ab2112827b652f1cf05b6420ed6a119962d
SHA512

ddb161a25bdc6465ddba19c8781773006e8cbf7b8e909aae20eb4cc577b085c72d75bed40b0d4ab2363003759a344b1aad2235381ab3c10043b3e47e2ee9f139

Score

10^/10

xloader euv4 loader persistence rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

euv4

C2

http://www.rematedeldia.com/euv4/

Decoy

anniebapartments.com

hagenbicycles.com

herbalist101.com

southerncorrosion.net

kuechenpruefer.com

tajniezdrzi.quest

segurofunerarioar.com

boardsandbeamsdecor.com

alifdanismanlik.com

pkem.top

mddc.clinic

handejqr.com

crux-at.com

awp.email

hugsforbubbs.com

cielotherepy.com

turkcuyuz.com

teamidc.com

lankasirinspa.com

68135.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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1748-61-0x0000000000000000-mapping.dmp	xloader
behavioral1/memory/1748-65-0x0000000072480000-0x00000000724A9000-memory.dmp	xloader
behavioral1/memory/1496-73-0x00000000000C0000-0x00000000000E9000-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:

mstsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\HNUXN448_6- = "C:\\Program Files (x86)\\G-zp8d\\ThumbCacheqjstczi.exe"	mstsc.exe

Executes dropped EXE 1 IoCs

Processes:

ThumbCacheqjstczi.exe

pid process

1820 ThumbCacheqjstczi.exe

pid	process
1820	ThumbCacheqjstczi.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Se adjunta el pedido, proforma.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\Lxtcsmeg = "C:\\Users\\Admin\\Contacts\\Lxtcsmeg\\gemsctxL.url"	Se adjunta el pedido, proforma.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

DpiScaling.exemstsc.exe

description	pid	process	target process
PID 1748 set thread context of 1360	1748	DpiScaling.exe	Explorer.EXE
PID 1496 set thread context of 1360	1496	mstsc.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

mstsc.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe	mstsc.exe
File created	C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exeExplorer.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-103686315-404690609-2047157615-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	Explorer.EXE

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	process
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

DpiScaling.exemstsc.exe

pid	process
1748	DpiScaling.exe
1748	DpiScaling.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe
1496	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

DpiScaling.exemstsc.exe

pid process

1748 DpiScaling.exe
1748 DpiScaling.exe
1748 DpiScaling.exe
1496 mstsc.exe
1496 mstsc.exe
1496 mstsc.exe
1496 mstsc.exe

pid	process
1360	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

DpiScaling.exemstsc.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1748	DpiScaling.exe
Token: SeDebugPrivilege	1496	mstsc.exe
Token: SeShutdownPrivilege	1360	Explorer.EXE
Token: SeShutdownPrivilege	1360	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE
1360 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE

pid	process
1360	Explorer.EXE
1360	Explorer.EXE
1360	Explorer.EXE

pid	process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Se adjunta el pedido, proforma.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1072 wrote to memory of 1748	1072	Se adjunta el pedido, proforma.exe	DpiScaling.exe
PID 1360 wrote to memory of 1496	1360	Explorer.EXE	mstsc.exe
PID 1360 wrote to memory of 1496	1360	Explorer.EXE	mstsc.exe
PID 1360 wrote to memory of 1496	1360	Explorer.EXE	mstsc.exe
PID 1360 wrote to memory of 1496	1360	Explorer.EXE	mstsc.exe
PID 1496 wrote to memory of 1480	1496	mstsc.exe	cmd.exe
PID 1496 wrote to memory of 1480	1496	mstsc.exe	cmd.exe
PID 1496 wrote to memory of 1480	1496	mstsc.exe	cmd.exe
PID 1496 wrote to memory of 1480	1496	mstsc.exe	cmd.exe
PID 1496 wrote to memory of 1976	1496	mstsc.exe	Firefox.exe
PID 1496 wrote to memory of 1976	1496	mstsc.exe	Firefox.exe
PID 1496 wrote to memory of 1976	1496	mstsc.exe	Firefox.exe
PID 1496 wrote to memory of 1976	1496	mstsc.exe	Firefox.exe
PID 1360 wrote to memory of 1820	1360	Explorer.EXE	ThumbCacheqjstczi.exe
PID 1360 wrote to memory of 1820	1360	Explorer.EXE	ThumbCacheqjstczi.exe
PID 1360 wrote to memory of 1820	1360	Explorer.EXE	ThumbCacheqjstczi.exe
PID 1360 wrote to memory of 1820	1360	Explorer.EXE	ThumbCacheqjstczi.exe
PID 1496 wrote to memory of 1976	1496	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1360

C:\Users\Admin\AppData\Local\Temp\Se adjunta el pedido, proforma.exe
"C:\Users\Admin\AppData\Local\Temp\Se adjunta el pedido, proforma.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1072

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1748

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.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:1496

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\DpiScaling.exe"
3⤵
PID:1480

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1976

C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe
"C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe"
2⤵
- Executes dropped EXE
PID:1820

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
1⤵
PID:1572

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe
MD5
8c9da2e414e713d3daff1f18223ae11b

SHA1
9ef90d73fa4d852be9b803a5e990cc908aab8a94

SHA256
60b2a9d679f14f92e284ad21395da53652db137e45ec6473d9033e6c3fe6a37f

SHA512
adc712d94e8226729b336a348e9376d68f1e006871e7a0151f312e125e96226e74bc75e87efd709e31c5cb322a9ed68e2912c9fd03bd6e6800f5900f712105d7

Download Submit
C:\Program Files (x86)\G-zp8d\ThumbCacheqjstczi.exe
MD5
8c9da2e414e713d3daff1f18223ae11b

SHA1
9ef90d73fa4d852be9b803a5e990cc908aab8a94

SHA256
60b2a9d679f14f92e284ad21395da53652db137e45ec6473d9033e6c3fe6a37f

SHA512
adc712d94e8226729b336a348e9376d68f1e006871e7a0151f312e125e96226e74bc75e87efd709e31c5cb322a9ed68e2912c9fd03bd6e6800f5900f712105d7

Download Submit
memory/1072-56-0x0000000000301000-0x0000000000315000-memory.dmp

Filesize
80KB

Download
memory/1072-57-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1072-55-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/1360-68-0x0000000004290000-0x0000000004348000-memory.dmp

Filesize
736KB

Download
memory/1360-76-0x0000000006880000-0x0000000006960000-memory.dmp

Filesize
896KB

Download
memory/1480-71-0x0000000000000000-mapping.dmp

Download
memory/1496-74-0x00000000020D0000-0x00000000023D3000-memory.dmp

Filesize
3.0MB

Download
memory/1496-72-0x0000000000A30000-0x0000000000B34000-memory.dmp

Filesize
1.0MB

Download
memory/1496-75-0x0000000001F40000-0x0000000001FD0000-memory.dmp

Filesize
576KB

Download
memory/1496-69-0x0000000000000000-mapping.dmp

Download
memory/1496-73-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/1748-66-0x0000000001F80000-0x0000000002283000-memory.dmp

Filesize
3.0MB

Download
memory/1748-67-0x0000000000280000-0x0000000000291000-memory.dmp

Filesize
68KB

Download
memory/1748-64-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/1748-65-0x0000000072480000-0x00000000724A9000-memory.dmp

Filesize
164KB

Download
memory/1748-61-0x0000000000000000-mapping.dmp

Download
memory/1748-59-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1748-58-0x0000000072480000-0x00000000724A9000-memory.dmp

Filesize
164KB

Download
memory/1820-77-0x0000000000000000-mapping.dmp

Download
memory/1820-80-0x0000000072F01000-0x0000000072F03000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads