xloader | 4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd

General

Target

Cslmw.exe
Size

23KB
MD5

f252b7a35b4b4af6a7dee8840b1e7132
SHA1

e9fa1a744adc80c91203aaf06e4edbcd25cac199
SHA256

4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd
SHA512

389e94b834f64609e8b2a861f5697a3b5b7eee4e2f71b76ae19a616560bd1f8d1d3396cf13e657c41792e43caedd61fe6641983819bbf83f8625fbd693c65af5

Score

10^/10

xloader ssac loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ssac

Decoy

beautybybrin.com

oregemo.com

prospectoriq.com

blazermid.com

cloudnineloans.com

myyntisofta.com

filoupoils.com

web-solutiontnpasumo3.xyz

becbares.com

lines-hikkoshi.com

ohayouwww.com

writingdadsobituarywithdad.com

bridalbaes.com

jamshir.com

rangertots.com

dankbrobeans.com

titan111.com

uplearns.info

maxicashprokil.xyz

evc24.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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2212-136-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2212-138-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1456-144-0x0000000000DB0000-0x0000000000DD9000-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:

raserver.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JZYLV2E8L8Y = "C:\\Program Files (x86)\\Q-z3d\\ex4l_8hlmnc.exe"	raserver.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	raserver.exe

Executes dropped EXE 2 IoCs

Processes:

ex4l_8hlmnc.exeex4l_8hlmnc.exe

pid process

1044 ex4l_8hlmnc.exe
3364 ex4l_8hlmnc.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
1044	ex4l_8hlmnc.exe
3364	ex4l_8hlmnc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Cslmw.exeex4l_8hlmnc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Knolmy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Onqsw\\Knolmy.exe\""	Cslmw.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Knolmy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Onqsw\\Knolmy.exe\""	ex4l_8hlmnc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Cslmw.exeCslmw.exeraserver.exeex4l_8hlmnc.exe

description	pid	process	target process
PID 1516 set thread context of 2212	1516	Cslmw.exe	Cslmw.exe
PID 2212 set thread context of 2880	2212	Cslmw.exe	Explorer.EXE
PID 1456 set thread context of 2880	1456	raserver.exe	Explorer.EXE
PID 1044 set thread context of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe

Drops file in Program Files directory 4 IoCs

Processes:

raserver.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe	raserver.exe
File opened for modification	C:\Program Files (x86)\Q-z3d	Explorer.EXE
File created	C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Cslmw.exeCslmw.exeraserver.exe

pid	process
1516	Cslmw.exe
1516	Cslmw.exe
2212	Cslmw.exe
2212	Cslmw.exe
2212	Cslmw.exe
2212	Cslmw.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2880 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Cslmw.exeraserver.exe

pid process

2212 Cslmw.exe
2212 Cslmw.exe
2212 Cslmw.exe
1456 raserver.exe
1456 raserver.exe
1456 raserver.exe
1456 raserver.exe

pid	process
2880	Explorer.EXE

pid	process
2212	Cslmw.exe
2212	Cslmw.exe
2212	Cslmw.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe
1456	raserver.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Cslmw.exeCslmw.exeraserver.exeExplorer.EXEex4l_8hlmnc.exeex4l_8hlmnc.exe

description	pid	process
Token: SeDebugPrivilege	1516	Cslmw.exe
Token: SeDebugPrivilege	2212	Cslmw.exe
Token: SeDebugPrivilege	1456	raserver.exe
Token: SeShutdownPrivilege	2880	Explorer.EXE
Token: SeCreatePagefilePrivilege	2880	Explorer.EXE
Token: SeDebugPrivilege	1044	ex4l_8hlmnc.exe
Token: SeShutdownPrivilege	2880	Explorer.EXE
Token: SeCreatePagefilePrivilege	2880	Explorer.EXE
Token: SeDebugPrivilege	3364	ex4l_8hlmnc.exe
Token: SeShutdownPrivilege	2880	Explorer.EXE
Token: SeCreatePagefilePrivilege	2880	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

Cslmw.exeExplorer.EXEraserver.exeex4l_8hlmnc.exe

description	pid	process	target process
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 1516 wrote to memory of 2212	1516	Cslmw.exe	Cslmw.exe
PID 2880 wrote to memory of 1456	2880	Explorer.EXE	raserver.exe
PID 2880 wrote to memory of 1456	2880	Explorer.EXE	raserver.exe
PID 2880 wrote to memory of 1456	2880	Explorer.EXE	raserver.exe
PID 1456 wrote to memory of 1716	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 1716	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 1716	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 4408	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 4408	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 4408	1456	raserver.exe	cmd.exe
PID 1456 wrote to memory of 4552	1456	raserver.exe	Firefox.exe
PID 1456 wrote to memory of 4552	1456	raserver.exe	Firefox.exe
PID 2880 wrote to memory of 1044	2880	Explorer.EXE	ex4l_8hlmnc.exe
PID 2880 wrote to memory of 1044	2880	Explorer.EXE	ex4l_8hlmnc.exe
PID 2880 wrote to memory of 1044	2880	Explorer.EXE	ex4l_8hlmnc.exe
PID 1456 wrote to memory of 4552	1456	raserver.exe	Firefox.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.exe
PID 1044 wrote to memory of 3364	1044	ex4l_8hlmnc.exe	ex4l_8hlmnc.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:2880

C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
"C:\Users\Admin\AppData\Local\Temp\Cslmw.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2212

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.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:1456

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Cslmw.exe"
3⤵
PID:1716

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:4408

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4552

C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe
"C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044

C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe
"C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3364

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

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:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe
MD5
f252b7a35b4b4af6a7dee8840b1e7132

SHA1
e9fa1a744adc80c91203aaf06e4edbcd25cac199

SHA256
4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd

SHA512
389e94b834f64609e8b2a861f5697a3b5b7eee4e2f71b76ae19a616560bd1f8d1d3396cf13e657c41792e43caedd61fe6641983819bbf83f8625fbd693c65af5

Download Submit
C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe
MD5
f252b7a35b4b4af6a7dee8840b1e7132

SHA1
e9fa1a744adc80c91203aaf06e4edbcd25cac199

SHA256
4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd

SHA512
389e94b834f64609e8b2a861f5697a3b5b7eee4e2f71b76ae19a616560bd1f8d1d3396cf13e657c41792e43caedd61fe6641983819bbf83f8625fbd693c65af5

Download Submit
C:\Program Files (x86)\Q-z3d\ex4l_8hlmnc.exe
MD5
f252b7a35b4b4af6a7dee8840b1e7132

SHA1
e9fa1a744adc80c91203aaf06e4edbcd25cac199

SHA256
4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd

SHA512
389e94b834f64609e8b2a861f5697a3b5b7eee4e2f71b76ae19a616560bd1f8d1d3396cf13e657c41792e43caedd61fe6641983819bbf83f8625fbd693c65af5

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

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Roaming\Onqsw\Knolmy.exe
MD5
c43a3b20d2dce5fc635d3f84cf0db1fe

SHA1
a90c63cbdcb643f666d2174b397ad811d5579b51

SHA256
f307ac4939275cb10d6e15bb0f9b0308504dea3bd1a4236627db47220ad75fea

SHA512
a708fc46192b15ad1d6d0f6152ebff2d5cdf8c4fe3d192041be4006afae900f2de70ba67aaf5af21f5b5364023990dcf4effaf66bce1f9cbf3471a89ec9dc87e

Download Submit
memory/1044-152-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

Download
memory/1044-151-0x0000000073040000-0x00000000737F0000-memory.dmp

Filesize
7.7MB

Download
memory/1456-144-0x0000000000DB0000-0x0000000000DD9000-memory.dmp

Filesize
164KB

Download
memory/1456-143-0x0000000000150000-0x000000000016F000-memory.dmp

Filesize
124KB

Download
memory/1456-146-0x0000000002CB0000-0x0000000002D40000-memory.dmp

Filesize
576KB

Download
memory/1456-145-0x0000000002E70000-0x00000000031BA000-memory.dmp

Filesize
3.3MB

Download
memory/1516-134-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/1516-135-0x00000000054D0000-0x0000000005A74000-memory.dmp

Filesize
5.6MB

Download
memory/1516-131-0x0000000005A80000-0x0000000006024000-memory.dmp

Filesize
5.6MB

Download
memory/1516-132-0x0000000074AC0000-0x0000000075270000-memory.dmp

Filesize
7.7MB

Download
memory/1516-130-0x0000000000AA0000-0x0000000000AAC000-memory.dmp

Filesize
48KB

Download
memory/1516-133-0x00000000055B0000-0x0000000005642000-memory.dmp

Filesize
584KB

Download
memory/2212-140-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/2212-136-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2212-138-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2212-139-0x0000000001720000-0x0000000001A6A000-memory.dmp

Filesize
3.3MB

Download
memory/2212-141-0x00000000016F0000-0x0000000001701000-memory.dmp

Filesize
68KB

Download
memory/2880-147-0x0000000008AD0000-0x0000000008C3B000-memory.dmp

Filesize
1.4MB

Download
memory/2880-142-0x00000000085E0000-0x0000000008747000-memory.dmp

Filesize
1.4MB

Download
memory/3364-156-0x00000000019B0000-0x0000000001CFA000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads