xloader | b194903f2fb1231113b2cffdd6cf47e25d4d9f99675654f70865b1f3d0a9160c

General

Target

ledger.exe
Size

746KB
MD5

bb7bbc40aef8439092e6345d3428c975
SHA1

9bf46b95ff700e57bc0e38d5133577bfad260ea2
SHA256

b194903f2fb1231113b2cffdd6cf47e25d4d9f99675654f70865b1f3d0a9160c
SHA512

a1ed9eac420f49c4e101ddfb84a1b148a2c05a0999553978528cc1976f3027325b0944c721696ddc1b73b68bcc9766dcb884414efae70543ae7023f34130632f

Score

10^/10

xloader n58i loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

n58i

C2

http://www.biosonicmicrocurrent.com/n58i/

Decoy

electrifyz.com

silkpetalz.net

cognitivenavigation.com

poophaikus.com

orchidiris.com

arteregalos.com

dailybookmarks.info

gogoanume.pro

hushmailgmx.com

trjisa.com

notontrend.com

2020polltax.com

orderhappy.club

panggabean.net

govsathi.com

hrsbxg.com

xvideotokyo.online

lotteplaze.com

lovecleanliveclean.com

swaphomeloans.net

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/316-59-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/316-60-0x000000000041D040-mapping.dmp	xloader
behavioral1/memory/368-70-0x0000000000130000-0x0000000000158000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

740 cmd.exe

pid	process
740	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

ledger.exeledger.execmstp.exe

description	pid	process	target process
PID 1392 set thread context of 316	1392	ledger.exe	ledger.exe
PID 316 set thread context of 1404	316	ledger.exe	Explorer.EXE
PID 316 set thread context of 1404	316	ledger.exe	Explorer.EXE
PID 368 set thread context of 1404	368	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ledger.execmstp.exe

pid	process
316	ledger.exe
316	ledger.exe
316	ledger.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe
368	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

ledger.execmstp.exe

pid process

316 ledger.exe
316 ledger.exe
316 ledger.exe
316 ledger.exe
368 cmstp.exe
368 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ledger.execmstp.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 316 ledger.exe
Token: SeDebugPrivilege 368 cmstp.exe
Token: SeShutdownPrivilege 1404 Explorer.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
1404 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
1404 Explorer.EXE

pid	process
1404	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	316	ledger.exe
Token: SeDebugPrivilege	368	cmstp.exe
Token: SeShutdownPrivilege	1404	Explorer.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

ledger.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1392 wrote to memory of 316	1392	ledger.exe	ledger.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 1404 wrote to memory of 368	1404	Explorer.EXE	cmstp.exe
PID 368 wrote to memory of 740	368	cmstp.exe	cmd.exe
PID 368 wrote to memory of 740	368	cmstp.exe	cmd.exe
PID 368 wrote to memory of 740	368	cmstp.exe	cmd.exe
PID 368 wrote to memory of 740	368	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1404

C:\Users\Admin\AppData\Local\Temp\ledger.exe
"C:\Users\Admin\AppData\Local\Temp\ledger.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1392

C:\Users\Admin\AppData\Local\Temp\ledger.exe
"C:\Users\Admin\AppData\Local\Temp\ledger.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:316

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:368

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ledger.exe"
3⤵
- Deletes itself
PID:740

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/316-64-0x00000000001A0000-0x00000000001B0000-memory.dmp

Filesize
64KB

Download
memory/316-59-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/316-61-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/316-62-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/316-60-0x000000000041D040-mapping.dmp

Download
memory/368-67-0x00000000751D1000-0x00000000751D3000-memory.dmp

Filesize
8KB

Download
memory/368-69-0x0000000002020000-0x0000000002323000-memory.dmp

Filesize
3.0MB

Download
memory/368-72-0x0000000000970000-0x00000000009FF000-memory.dmp

Filesize
572KB

Download
memory/368-70-0x0000000000130000-0x0000000000158000-memory.dmp

Filesize
160KB

Download
memory/368-68-0x0000000000C00000-0x0000000000C18000-memory.dmp

Filesize
96KB

Download
memory/368-66-0x0000000000000000-mapping.dmp

Download
memory/740-71-0x0000000000000000-mapping.dmp

Download
memory/1392-57-0x0000000004C50000-0x0000000004CB0000-memory.dmp

Filesize
384KB

Download
memory/1392-55-0x0000000001090000-0x0000000001091000-memory.dmp

Filesize
4KB

Download
memory/1392-58-0x00000000049A0000-0x00000000049CA000-memory.dmp

Filesize
168KB

Download
memory/1392-53-0x00000000010D0000-0x00000000010D1000-memory.dmp

Filesize
4KB

Download
memory/1392-56-0x0000000000600000-0x0000000000616000-memory.dmp

Filesize
88KB

Download
memory/1404-65-0x0000000007160000-0x00000000072DE000-memory.dmp

Filesize
1.5MB

Download
memory/1404-73-0x0000000008E40000-0x0000000008FBA000-memory.dmp

Filesize
1.5MB

Download
memory/1404-63-0x0000000006FC0000-0x0000000007153000-memory.dmp

Filesize
1.6MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads