xloader | 985bff9f5d8470baf0a3c5520eae6e8bb87a9761bd6c7ce41855c5c8cc0a58bc

General

Target

Invoice#5800371 pdf.exe
Size

837KB
MD5

328eaa1e53fdeba2a8d99f4a5f0385dd
SHA1

9da77711434bfe5eb4f26365513c7663da5e9885
SHA256

985bff9f5d8470baf0a3c5520eae6e8bb87a9761bd6c7ce41855c5c8cc0a58bc
SHA512

475be1e25abb8697952b5014ebfa6d5e26eb3f0d312739771f4f0f91819f55b3620dbeb76c3bb47a7febf17f8588232d4cecb25cc130f7437d1d810dd8b0586d

Score

10^/10

xloader loader persistence rat spyware stealer suricata

Malware Config

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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1684-137-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/1684-143-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/2136-146-0x0000000000320000-0x000000000034D000-memory.dmp	xloader
behavioral2/memory/2136-150-0x0000000000320000-0x000000000034D000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JFI4ANLHIRY = "C:\\Program Files (x86)\\Kdjo8\\snsytmtqh_h.exe"	msiexec.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Invoice#5800371 pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Invoice#5800371 pdf.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 3 IoCs

Processes:

Invoice#5800371 pdf.exeInvoice#5800371 pdf.exemsiexec.exe

description	pid	process	target process
PID 3296 set thread context of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 1684 set thread context of 2044	1684	Invoice#5800371 pdf.exe	Explorer.EXE
PID 2136 set thread context of 2044	2136	msiexec.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File opened for modification C:\Program Files (x86)\Kdjo8\snsytmtqh_h.exe msiexec.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Kdjo8\snsytmtqh_h.exe	msiexec.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

Invoice#5800371 pdf.exemsiexec.exe

pid	process
1684	Invoice#5800371 pdf.exe
1684	Invoice#5800371 pdf.exe
1684	Invoice#5800371 pdf.exe
1684	Invoice#5800371 pdf.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2044 Explorer.EXE

pid	process
2044	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Invoice#5800371 pdf.exemsiexec.exe

pid	process
1684	Invoice#5800371 pdf.exe
1684	Invoice#5800371 pdf.exe
1684	Invoice#5800371 pdf.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe
2136	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice#5800371 pdf.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 1684 Invoice#5800371 pdf.exe
Token: SeDebugPrivilege 2136 msiexec.exe

description	pid	process
Token: SeDebugPrivilege	1684	Invoice#5800371 pdf.exe
Token: SeDebugPrivilege	2136	msiexec.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Invoice#5800371 pdf.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 3296 wrote to memory of 1684	3296	Invoice#5800371 pdf.exe	Invoice#5800371 pdf.exe
PID 2044 wrote to memory of 2136	2044	Explorer.EXE	msiexec.exe
PID 2044 wrote to memory of 2136	2044	Explorer.EXE	msiexec.exe
PID 2044 wrote to memory of 2136	2044	Explorer.EXE	msiexec.exe
PID 2136 wrote to memory of 548	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 548	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 548	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 3228	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 3228	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 3228	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 4076	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 4076	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 4076	2136	msiexec.exe	cmd.exe
PID 2136 wrote to memory of 3104	2136	msiexec.exe	Firefox.exe
PID 2136 wrote to memory of 3104	2136	msiexec.exe	Firefox.exe
PID 2136 wrote to memory of 3104	2136	msiexec.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2044

C:\Users\Admin\AppData\Local\Temp\Invoice#5800371 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice#5800371 pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3296

C:\Users\Admin\AppData\Local\Temp\Invoice#5800371 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice#5800371 pdf.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1684

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Invoice#5800371 pdf.exe"
3⤵
PID:548

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:3228

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4076

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3104

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

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/548-144-0x0000000000000000-mapping.dmp

Download
memory/1684-143-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1684-136-0x0000000000000000-mapping.dmp

Download
memory/1684-137-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1684-139-0x0000000001990000-0x0000000001CDA000-memory.dmp

Filesize
3.3MB

Download
memory/1684-140-0x00000000017E0000-0x00000000017F1000-memory.dmp

Filesize
68KB

Download
memory/2044-149-0x0000000008AE0000-0x0000000008C33000-memory.dmp

Filesize
1.3MB

Download
memory/2044-151-0x0000000008AE0000-0x0000000008C33000-memory.dmp

Filesize
1.3MB

Download
memory/2044-141-0x0000000003370000-0x0000000003460000-memory.dmp

Filesize
960KB

Download
memory/2136-145-0x0000000000130000-0x0000000000142000-memory.dmp

Filesize
72KB

Download
memory/2136-142-0x0000000000000000-mapping.dmp

Download
memory/2136-150-0x0000000000320000-0x000000000034D000-memory.dmp

Filesize
180KB

Download
memory/2136-148-0x0000000002340000-0x00000000023D0000-memory.dmp

Filesize
576KB

Download
memory/2136-146-0x0000000000320000-0x000000000034D000-memory.dmp

Filesize
180KB

Download
memory/2136-147-0x00000000023D0000-0x000000000271A000-memory.dmp

Filesize
3.3MB

Download
memory/3228-152-0x0000000000000000-mapping.dmp

Download
memory/3296-134-0x0000000009100000-0x000000000919C000-memory.dmp

Filesize
624KB

Download
memory/3296-130-0x00000000008B0000-0x0000000000988000-memory.dmp

Filesize
864KB

Download
memory/3296-133-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/3296-135-0x00000000091A0000-0x0000000009206000-memory.dmp

Filesize
408KB

Download
memory/3296-132-0x0000000005310000-0x00000000053A2000-memory.dmp

Filesize
584KB

Download
memory/3296-131-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4076-154-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads