xloader | d1a716b9f2d3c4be4527b077dd5da726ffb4008935c7223116a3aa64b4f5f8f0

General

Target

overdue invoices_20220101.exe
Size

241KB
MD5

9505909b3c7ac59c6add4d72cd69ecd6
SHA1

3bb605a936ddb336de13fadd922b8be9634db0a6
SHA256

d1a716b9f2d3c4be4527b077dd5da726ffb4008935c7223116a3aa64b4f5f8f0
SHA512

0ba143e6ba24d25514ede89ffa97933309772f0c40c3d9eb9ae3e31dfecfc217e6712abda33f6105db33bd94cbfa816a9520d61dfd3f003022032c25fe9c657b

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/268-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/268-57-0x000000000041D440-mapping.dmp	xloader
behavioral1/memory/268-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1032-68-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1424 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

overdue invoices_20220101.exe

pid process

1892 overdue invoices_20220101.exe

pid	process
1424	cmd.exe

pid	process
1892	overdue invoices_20220101.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

overdue invoices_20220101.exeoverdue invoices_20220101.exewuapp.exe

description	pid	process	target process
PID 1892 set thread context of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 268 set thread context of 1376	268	overdue invoices_20220101.exe	Explorer.EXE
PID 268 set thread context of 1376	268	overdue invoices_20220101.exe	Explorer.EXE
PID 1032 set thread context of 1376	1032	wuapp.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:

overdue invoices_20220101.exewuapp.exe

pid	process
268	overdue invoices_20220101.exe
268	overdue invoices_20220101.exe
268	overdue invoices_20220101.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe
1032	wuapp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE

pid	process
1376	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

overdue invoices_20220101.exewuapp.exe

pid	process
268	overdue invoices_20220101.exe
268	overdue invoices_20220101.exe
268	overdue invoices_20220101.exe
268	overdue invoices_20220101.exe
1032	wuapp.exe
1032	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

overdue invoices_20220101.exewuapp.exe

description pid process

Token: SeDebugPrivilege 268 overdue invoices_20220101.exe
Token: SeDebugPrivilege 1032 wuapp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	268	overdue invoices_20220101.exe
Token: SeDebugPrivilege	1032	wuapp.exe

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

overdue invoices_20220101.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1892 wrote to memory of 268	1892	overdue invoices_20220101.exe	overdue invoices_20220101.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1376 wrote to memory of 1032	1376	Explorer.EXE	wuapp.exe
PID 1032 wrote to memory of 1424	1032	wuapp.exe	cmd.exe
PID 1032 wrote to memory of 1424	1032	wuapp.exe	cmd.exe
PID 1032 wrote to memory of 1424	1032	wuapp.exe	cmd.exe
PID 1032 wrote to memory of 1424	1032	wuapp.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:1376

C:\Users\Admin\AppData\Local\Temp\overdue invoices_20220101.exe
"C:\Users\Admin\AppData\Local\Temp\overdue invoices_20220101.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1892

C:\Users\Admin\AppData\Local\Temp\overdue invoices_20220101.exe
"C:\Users\Admin\AppData\Local\Temp\overdue invoices_20220101.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:268

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\overdue invoices_20220101.exe"
3⤵
- Deletes itself
PID:1424

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\nsiCE1A.tmp\flwegdgvb.dll
MD5
a300600e6b8394351a8389a806dd2c7d

SHA1
5f870174df74773d41b752ceed8eed23bfbfe2b3

SHA256
456a3e50040043e7f61780657d486ca1a114df74db3e6376ab9943badba26b58

SHA512
bce9e8cd5c679f913cedda3151728109c815e667de343d9df3f8bd4bd6522a2dcc1d0275e60ae479c24823b9afdedbcf91ceae5c958b19ade658fb3007bf8725

Download Submit
memory/268-63-0x0000000000390000-0x00000000003A1000-memory.dmp

Filesize
68KB

Download
memory/268-57-0x000000000041D440-mapping.dmp

Download
memory/268-59-0x0000000000740000-0x0000000000A43000-memory.dmp

Filesize
3.0MB

Download
memory/268-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/268-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/268-60-0x0000000000350000-0x0000000000361000-memory.dmp

Filesize
68KB

Download
memory/1032-67-0x0000000000D70000-0x0000000000D7B000-memory.dmp

Filesize
44KB

Download
memory/1032-70-0x00000000008A0000-0x0000000000930000-memory.dmp

Filesize
576KB

Download
memory/1032-68-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1032-65-0x0000000000000000-mapping.dmp

Download
memory/1032-69-0x0000000000980000-0x0000000000C83000-memory.dmp

Filesize
3.0MB

Download
memory/1376-64-0x00000000073A0000-0x0000000007509000-memory.dmp

Filesize
1.4MB

Download
memory/1376-61-0x0000000007110000-0x0000000007275000-memory.dmp

Filesize
1.4MB

Download
memory/1376-71-0x0000000004FC0000-0x00000000050BE000-memory.dmp

Filesize
1016KB

Download
memory/1424-66-0x0000000000000000-mapping.dmp

Download
memory/1892-54-0x00000000751B1000-0x00000000751B3000-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