xloader | 4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd

General

Target

Cslmw.exe
Size

23KB
MD5

f252b7a35b4b4af6a7dee8840b1e7132
SHA1

e9fa1a744adc80c91203aaf06e4edbcd25cac199
SHA256

4a5a4b370430e4f8fed7a3e8e7deb08321740497e0e693482352d2db973dbabd
SHA512

389e94b834f64609e8b2a861f5697a3b5b7eee4e2f71b76ae19a616560bd1f8d1d3396cf13e657c41792e43caedd61fe6641983819bbf83f8625fbd693c65af5

Score

10^/10

xloader ssac loader persistence rat

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

Xloader Payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1696-64-0x0000000000400000-0x0000000000429000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Cslmw.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\Knolmy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Onqsw\\Knolmy.exe\""	Cslmw.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Cslmw.exe

description pid process target process

PID 1504 set thread context of 1696 1504 Cslmw.exe Cslmw.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1036 1696 WerFault.exe Cslmw.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Cslmw.exe

pid process

1504 Cslmw.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Cslmw.exe

description pid process

Token: SeDebugPrivilege 1504 Cslmw.exe

description	pid	process	target process
PID 1504 set thread context of 1696	1504	Cslmw.exe	Cslmw.exe

pid	pid_target	process	target process
1036	1696	WerFault.exe	Cslmw.exe

pid	process
1504	Cslmw.exe

description	pid	process
Token: SeDebugPrivilege	1504	Cslmw.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Cslmw.exeCslmw.exe

description	pid	process	target process
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1504 wrote to memory of 1696	1504	Cslmw.exe	Cslmw.exe
PID 1696 wrote to memory of 1036	1696	Cslmw.exe	WerFault.exe
PID 1696 wrote to memory of 1036	1696	Cslmw.exe	WerFault.exe
PID 1696 wrote to memory of 1036	1696	Cslmw.exe	WerFault.exe
PID 1696 wrote to memory of 1036	1696	Cslmw.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
"C:\Users\Admin\AppData\Local\Temp\Cslmw.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
C:\Users\Admin\AppData\Local\Temp\Cslmw.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 36
3⤵
- Program crash
PID:1036

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

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1504-54-0x0000000000880000-0x000000000088C000-memory.dmp

Filesize
48KB

Download
memory/1504-55-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/1504-56-0x00000000048B0000-0x00000000048B1000-memory.dmp

Filesize
4KB

Download
memory/1504-57-0x0000000000B70000-0x0000000000BEE000-memory.dmp

Filesize
504KB

Download
memory/1504-58-0x0000000000830000-0x0000000000878000-memory.dmp

Filesize
288KB

Download
memory/1504-59-0x0000000004620000-0x000000000466C000-memory.dmp

Filesize
304KB

Download
memory/1696-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1696-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1696-64-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads