xloader | 4410e6f9469bbb3a9174dedf18c52e070ae7b6480b6f8e88c29c43996f2674d6

General

Target

1C22TVH_00002288.exe
Size

376KB
MD5

bcfcaf050beb758a18236ba5fca002a2
SHA1

1fc237942571a5382b926c938dbf15e99310d4a0
SHA256

4410e6f9469bbb3a9174dedf18c52e070ae7b6480b6f8e88c29c43996f2674d6
SHA512

3486b350f59b9d8da098a4fcb48a095fa928aaa4a23a191577feabf232d6613b92e9d82e9971ed448ae37fd4f97c54ded7285bcbe20d6504bd397c0bf0d6cfff

Score

10^/10

xloader tn61 loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3796-132-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/3796-134-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/1080-140-0x0000000000660000-0x000000000068B000-memory.dmp	xloader
behavioral2/memory/1080-145-0x0000000000660000-0x000000000068B000-memory.dmp	xloader

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

colorcpl.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	colorcpl.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1BFHZLRXCNYX = "C:\\Program Files (x86)\\Crrhds\\ThumbCachej0fh.exe"	colorcpl.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

1C22TVH_00002288.execvtres.execolorcpl.exe

description	pid	process	target process
PID 4120 set thread context of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 3796 set thread context of 1032	3796	cvtres.exe	Explorer.EXE
PID 1080 set thread context of 1032	1080	colorcpl.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

colorcpl.exe

description ioc process

File opened for modification C:\Program Files (x86)\Crrhds\ThumbCachej0fh.exe colorcpl.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Crrhds\ThumbCachej0fh.exe	colorcpl.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

colorcpl.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

cvtres.execolorcpl.exe

pid	process
3796	cvtres.exe
3796	cvtres.exe
3796	cvtres.exe
3796	cvtres.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe
1080	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1032 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

cvtres.execolorcpl.exe

pid process

3796 cvtres.exe
3796 cvtres.exe
3796 cvtres.exe
1080 colorcpl.exe
1080 colorcpl.exe
1080 colorcpl.exe
1080 colorcpl.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.execolorcpl.exe

description pid process

Token: SeDebugPrivilege 3796 cvtres.exe
Token: SeDebugPrivilege 1080 colorcpl.exe

pid	process
1032	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	3796	cvtres.exe
Token: SeDebugPrivilege	1080	colorcpl.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

1C22TVH_00002288.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 4120 wrote to memory of 3796	4120	1C22TVH_00002288.exe	cvtres.exe
PID 1032 wrote to memory of 1080	1032	Explorer.EXE	colorcpl.exe
PID 1032 wrote to memory of 1080	1032	Explorer.EXE	colorcpl.exe
PID 1032 wrote to memory of 1080	1032	Explorer.EXE	colorcpl.exe
PID 1080 wrote to memory of 4468	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 4468	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 4468	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 4704	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 4704	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 4704	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 5088	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 5088	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 5088	1080	colorcpl.exe	cmd.exe
PID 1080 wrote to memory of 2148	1080	colorcpl.exe	Firefox.exe
PID 1080 wrote to memory of 2148	1080	colorcpl.exe	Firefox.exe
PID 1080 wrote to memory of 2148	1080	colorcpl.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1032

C:\Users\Admin\AppData\Local\Temp\1C22TVH_00002288.exe
"C:\Users\Admin\AppData\Local\Temp\1C22TVH_00002288.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4120

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3796

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Adds 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:1080

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:4468

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:4704

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:5088

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2148

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

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/1032-146-0x0000000003160000-0x00000000032C4000-memory.dmp

Filesize
1.4MB

Download
memory/1032-144-0x0000000003160000-0x00000000032C4000-memory.dmp

Filesize
1.4MB

Download
memory/1032-137-0x0000000008350000-0x00000000084E0000-memory.dmp

Filesize
1.6MB

Download
memory/1080-142-0x0000000002650000-0x000000000299A000-memory.dmp

Filesize
3.3MB

Download
memory/1080-145-0x0000000000660000-0x000000000068B000-memory.dmp

Filesize
172KB

Download
memory/1080-138-0x0000000000000000-mapping.dmp

Download
memory/1080-139-0x00000000008A0000-0x00000000008B9000-memory.dmp

Filesize
100KB

Download
memory/1080-140-0x0000000000660000-0x000000000068B000-memory.dmp

Filesize
172KB

Download
memory/1080-143-0x0000000002480000-0x0000000002510000-memory.dmp

Filesize
576KB

Download
memory/3796-136-0x00000000014E0000-0x00000000014F1000-memory.dmp

Filesize
68KB

Download
memory/3796-135-0x0000000001650000-0x000000000199A000-memory.dmp

Filesize
3.3MB

Download
memory/3796-134-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3796-132-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3796-131-0x0000000000000000-mapping.dmp

Download
memory/4120-130-0x00000000009F0000-0x0000000000A50000-memory.dmp

Filesize
384KB

Download
memory/4468-141-0x0000000000000000-mapping.dmp

Download
memory/4704-147-0x0000000000000000-mapping.dmp

Download
memory/5088-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads