xloader | 16e137fca9b2bc45254218e2c5f19c2c3b74ec6e4454706bcfd4454a6472c33c

General

Target

bunker inquiry_020100121.exe
Size

272KB
MD5

d700d80487e10f8b9ea5fb50b9e9109c
SHA1

9177a19d76b09d4cde071a07ffb626c9bd4e3652
SHA256

16e137fca9b2bc45254218e2c5f19c2c3b74ec6e4454706bcfd4454a6472c33c
SHA512

e27bf0d76d02b2ccd90d30d94cb94d1549f920fb9fcbf31b0ce13131cd6ff7465a08515469414214d23a26cb7474b7f9a9749c2be88a51458768f8cd429c9a40

Score

10^/10

xloader igwa loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

igwa

Decoy

listingswithalex.com

funtabse.com

aydenwalling.com

prochal.net

superfoodsnederland.com

moldluck.com

dianekgordon.store

regionalhomescommercial.com

mysecuritymadesimple.com

malwaremastery.com

kodaikeiko.com

jrzg996.com

agricurve.net

songlingjiu.com

virginianundahfishingclub.com

friendschance.com

pastelpresents.com

answertitles.com

survival-hunter.com

nxfddl.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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/584-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/584-57-0x000000000041D440-mapping.dmp	xloader
behavioral1/memory/560-65-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

452 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

bunker inquiry_020100121.exe

pid process

1624 bunker inquiry_020100121.exe

pid	process
452	cmd.exe

pid	process
1624	bunker inquiry_020100121.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

bunker inquiry_020100121.exebunker inquiry_020100121.exeNAPSTAT.EXE

description	pid	process	target process
PID 1624 set thread context of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 584 set thread context of 1404	584	bunker inquiry_020100121.exe	Explorer.EXE
PID 560 set thread context of 1404	560	NAPSTAT.EXE	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

bunker inquiry_020100121.exeNAPSTAT.EXE

pid	process
584	bunker inquiry_020100121.exe
584	bunker inquiry_020100121.exe
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE
560	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

bunker inquiry_020100121.exeNAPSTAT.EXE

pid process

584 bunker inquiry_020100121.exe
584 bunker inquiry_020100121.exe
584 bunker inquiry_020100121.exe
560 NAPSTAT.EXE
560 NAPSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bunker inquiry_020100121.exeNAPSTAT.EXE

description pid process

Token: SeDebugPrivilege 584 bunker inquiry_020100121.exe
Token: SeDebugPrivilege 560 NAPSTAT.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	584	bunker inquiry_020100121.exe
Token: SeDebugPrivilege	560	NAPSTAT.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

bunker inquiry_020100121.exeExplorer.EXENAPSTAT.EXE

description	pid	process	target process
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1624 wrote to memory of 584	1624	bunker inquiry_020100121.exe	bunker inquiry_020100121.exe
PID 1404 wrote to memory of 560	1404	Explorer.EXE	NAPSTAT.EXE
PID 1404 wrote to memory of 560	1404	Explorer.EXE	NAPSTAT.EXE
PID 1404 wrote to memory of 560	1404	Explorer.EXE	NAPSTAT.EXE
PID 1404 wrote to memory of 560	1404	Explorer.EXE	NAPSTAT.EXE
PID 560 wrote to memory of 452	560	NAPSTAT.EXE	cmd.exe
PID 560 wrote to memory of 452	560	NAPSTAT.EXE	cmd.exe
PID 560 wrote to memory of 452	560	NAPSTAT.EXE	cmd.exe
PID 560 wrote to memory of 452	560	NAPSTAT.EXE	cmd.exe

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

C:\Users\Admin\AppData\Local\Temp\bunker inquiry_020100121.exe
"C:\Users\Admin\AppData\Local\Temp\bunker inquiry_020100121.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1624

C:\Users\Admin\AppData\Local\Temp\bunker inquiry_020100121.exe
"C:\Users\Admin\AppData\Local\Temp\bunker inquiry_020100121.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:584

C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bunker inquiry_020100121.exe"
3⤵
- Deletes itself
PID:452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsyAC0A.tmp\eekmeeht.dll
MD5
cac14ac261a8e2911027bbcced7466b3

SHA1
0d104ba98bbd11533b7999b434eb819a0bb61045

SHA256
521bc905075db8ff9cd4bc35d66f1530819fd4122014517e74eb2945451fc7a4

SHA512
61c917f17ed7588a2d94b83504c92309f376a19f4c297c327c3b2c7c9fc87576e2bd1c55210c2aef4be7842cf7c85efc2263de9f59e75bed45ff60ee32dad2a3

Download Submit
memory/452-63-0x0000000000000000-mapping.dmp

Download
memory/560-62-0x0000000000000000-mapping.dmp

Download
memory/560-67-0x0000000000880000-0x0000000000910000-memory.dmp

Filesize
576KB

Download
memory/560-66-0x0000000001F30000-0x0000000002233000-memory.dmp

Filesize
3.0MB

Download
memory/560-65-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/560-64-0x00000000002B0000-0x00000000002F6000-memory.dmp

Filesize
280KB

Download
memory/584-57-0x000000000041D440-mapping.dmp

Download
memory/584-61-0x0000000000480000-0x0000000000491000-memory.dmp

Filesize
68KB

Download
memory/584-59-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/584-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1404-60-0x00000000071A0000-0x0000000007330000-memory.dmp

Filesize
1.6MB

Download
memory/1404-68-0x0000000006AF0000-0x0000000006C34000-memory.dmp

Filesize
1.3MB

Download
memory/1624-54-0x0000000076C61000-0x0000000076C63000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads