xloader | f90a07b0a02db42be743f109cbc04ac2a0c06326a228b2971ecd31bcd653a14d

General

Target

ledger.exe
Size

746KB
MD5

bb7bbc40aef8439092e6345d3428c975
SHA1

9bf46b95ff700e57bc0e38d5133577bfad260ea2
SHA256

b194903f2fb1231113b2cffdd6cf47e25d4d9f99675654f70865b1f3d0a9160c
SHA512

a1ed9eac420f49c4e101ddfb84a1b148a2c05a0999553978528cc1976f3027325b0944c721696ddc1b73b68bcc9766dcb884414efae70543ae7023f34130632f

Score

10^/10

xloader n58i loader rat suricata

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
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/960-58-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/960-59-0x000000000041D040-mapping.dmp	xloader
behavioral1/memory/876-66-0x00000000000D0000-0x00000000000F8000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1040 cmd.exe

pid	process
1040	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ledger.exeledger.exesystray.exe

description	pid	process	target process
PID 1664 set thread context of 960	1664	ledger.exe	ledger.exe
PID 960 set thread context of 1376	960	ledger.exe	Explorer.EXE
PID 876 set thread context of 1376	876	systray.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

ledger.exesystray.exe

pid	process
960	ledger.exe
960	ledger.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe
876	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

ledger.exesystray.exe

pid process

960 ledger.exe
960 ledger.exe
960 ledger.exe
876 systray.exe
876 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ledger.exesystray.exe

description pid process

Token: SeDebugPrivilege 960 ledger.exe
Token: SeDebugPrivilege 876 systray.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	960	ledger.exe
Token: SeDebugPrivilege	876	systray.exe

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ledger.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1664 wrote to memory of 960	1664	ledger.exe	ledger.exe
PID 1376 wrote to memory of 876	1376	Explorer.EXE	systray.exe
PID 1376 wrote to memory of 876	1376	Explorer.EXE	systray.exe
PID 1376 wrote to memory of 876	1376	Explorer.EXE	systray.exe
PID 1376 wrote to memory of 876	1376	Explorer.EXE	systray.exe
PID 876 wrote to memory of 1040	876	systray.exe	cmd.exe
PID 876 wrote to memory of 1040	876	systray.exe	cmd.exe
PID 876 wrote to memory of 1040	876	systray.exe	cmd.exe
PID 876 wrote to memory of 1040	876	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

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:1664

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:960

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ledger.exe"
3⤵
- Deletes itself
PID:1040

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/876-63-0x0000000000000000-mapping.dmp

Download
memory/876-68-0x0000000000950000-0x00000000009DF000-memory.dmp

Filesize
572KB

Download
memory/876-67-0x00000000020E0000-0x00000000023E3000-memory.dmp

Filesize
3.0MB

Download
memory/876-66-0x00000000000D0000-0x00000000000F8000-memory.dmp

Filesize
160KB

Download
memory/876-65-0x0000000000CD0000-0x0000000000CD5000-memory.dmp

Filesize
20KB

Download
memory/960-61-0x00000000001E0000-0x00000000001F0000-memory.dmp

Filesize
64KB

Download
memory/960-59-0x000000000041D040-mapping.dmp

Download
memory/960-60-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/960-58-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1040-64-0x0000000000000000-mapping.dmp

Download
memory/1376-62-0x0000000006AF0000-0x0000000006C70000-memory.dmp

Filesize
1.5MB

Download
memory/1376-69-0x0000000004B90000-0x0000000004C68000-memory.dmp

Filesize
864KB

Download
memory/1664-52-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/1664-57-0x0000000004EA0000-0x0000000004ECA000-memory.dmp

Filesize
168KB

Download
memory/1664-56-0x0000000005DE0000-0x0000000005E40000-memory.dmp

Filesize
384KB

Download
memory/1664-55-0x0000000000550000-0x0000000000566000-memory.dmp

Filesize
88KB

Download
memory/1664-54-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads