xloader | 44079f7afc8f2b9900564b14b8e3e9e5b8de7ad0b4a1d514e5ff644def494d4e

General

Target

STD 35 GA Plan_PDF.exe
Size

662KB
MD5

1697d5a8c04a7220e7bd25e3a7b4ada5
SHA1

5b71b005e84f5dcbca487c24f7662303d0dd656b
SHA256

44079f7afc8f2b9900564b14b8e3e9e5b8de7ad0b4a1d514e5ff644def494d4e
SHA512

3c68a2b785108b4ef26e122989b28f8126578815c8de0d8f80cdc251d3d86a31059b4aecd379fd6bde8aafcbc58bc2523e7dbaada706c3b3921d4ff2b192ae1f

Score

10^/10

xloader iewb loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

iewb

Decoy

n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==

5vIAIY+pt81OtWs+FdIEdk7Y

LHIKc+oWGIQUUlfAAtEEdk7Y

ePM/cX2jvHrS

5hvPEw22+fdvmJz3C8FIVq0=

mb9EeX2jvHrS

Dx2zIYNvfjo8VUo5

6jVPnyJekv2RAc4gLKNwEqQ=

KWatHyjdE5Gj1Ng=

t9lk70gzUAZty4qjbVjF

6eUBeFPzKBWT125BFNIEdk7Y

dZUXOIyqTJGj1Ng=

iL3TVh2Jl5QVStnzxcAhIL8=

J1prtyklUfZGR/xDD71IbkWRd2yx

s9FgCOBRW9bU0Y6jbVjF

RYCbQDzcFBhcylgu

Fl0BV/8RJm6F9QRg8LXXTLo=

0dhumHzrCCZ3wdQg7nFF1AlL6Tk=

xvL+iL6wwX+/wH9K4lbZ/A==

N0lVceIFD5Gj1Ng=

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
behavioral2/memory/2808-137-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2808-143-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2380-147-0x0000000000B80000-0x0000000000BAC000-memory.dmp	xloader
behavioral2/memory/2380-150-0x0000000000B80000-0x0000000000BAC000-memory.dmp	xloader

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:

STD 35 GA Plan_PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	STD 35 GA Plan_PDF.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

STD 35 GA Plan_PDF.exeSTD 35 GA Plan_PDF.execscript.exe

description	pid	process	target process
PID 4040 set thread context of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 2808 set thread context of 2640	2808	STD 35 GA Plan_PDF.exe	Explorer.EXE
PID 2380 set thread context of 2640	2380	cscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

STD 35 GA Plan_PDF.execscript.exe

pid	process
2808	STD 35 GA Plan_PDF.exe
2808	STD 35 GA Plan_PDF.exe
2808	STD 35 GA Plan_PDF.exe
2808	STD 35 GA Plan_PDF.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe
2380	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2640 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

STD 35 GA Plan_PDF.execscript.exe

pid process

2808 STD 35 GA Plan_PDF.exe
2808 STD 35 GA Plan_PDF.exe
2808 STD 35 GA Plan_PDF.exe
2380 cscript.exe
2380 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

STD 35 GA Plan_PDF.execscript.exe

description pid process

Token: SeDebugPrivilege 2808 STD 35 GA Plan_PDF.exe
Token: SeDebugPrivilege 2380 cscript.exe

pid	process
2640	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2808	STD 35 GA Plan_PDF.exe
Token: SeDebugPrivilege	2380	cscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

STD 35 GA Plan_PDF.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 4040 wrote to memory of 2808	4040	STD 35 GA Plan_PDF.exe	STD 35 GA Plan_PDF.exe
PID 2640 wrote to memory of 2380	2640	Explorer.EXE	cscript.exe
PID 2640 wrote to memory of 2380	2640	Explorer.EXE	cscript.exe
PID 2640 wrote to memory of 2380	2640	Explorer.EXE	cscript.exe
PID 2380 wrote to memory of 2656	2380	cscript.exe	cmd.exe
PID 2380 wrote to memory of 2656	2380	cscript.exe	cmd.exe
PID 2380 wrote to memory of 2656	2380	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2640

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_PDF.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4040

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_PDF.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2808

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_PDF.exe"
3⤵
PID:2656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2380-142-0x0000000000000000-mapping.dmp

Download
memory/2380-150-0x0000000000B80000-0x0000000000BAC000-memory.dmp

Filesize
176KB

Download
memory/2380-148-0x0000000002E00000-0x0000000002E90000-memory.dmp

Filesize
576KB

Download
memory/2380-147-0x0000000000B80000-0x0000000000BAC000-memory.dmp

Filesize
176KB

Download
memory/2380-146-0x0000000002F20000-0x000000000326A000-memory.dmp

Filesize
3.3MB

Download
memory/2380-145-0x0000000000E60000-0x0000000000E87000-memory.dmp

Filesize
156KB

Download
memory/2640-141-0x0000000008B90000-0x0000000008D1C000-memory.dmp

Filesize
1.5MB

Download
memory/2640-149-0x0000000007B70000-0x0000000007CE6000-memory.dmp

Filesize
1.5MB

Download
memory/2640-151-0x0000000007B70000-0x0000000007CE6000-memory.dmp

Filesize
1.5MB

Download
memory/2656-144-0x0000000000000000-mapping.dmp

Download
memory/2808-139-0x0000000001B50000-0x0000000001E9A000-memory.dmp

Filesize
3.3MB

Download
memory/2808-140-0x0000000001610000-0x0000000001621000-memory.dmp

Filesize
68KB

Download
memory/2808-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2808-136-0x0000000000000000-mapping.dmp

Download
memory/2808-143-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4040-130-0x0000000000F50000-0x0000000000FFC000-memory.dmp

Filesize
688KB

Download
memory/4040-133-0x0000000005A10000-0x0000000005A1A000-memory.dmp

Filesize
40KB

Download
memory/4040-132-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/4040-134-0x00000000080D0000-0x000000000816C000-memory.dmp

Filesize
624KB

Download
memory/4040-131-0x0000000006010000-0x00000000065B4000-memory.dmp

Filesize
5.6MB

Download
memory/4040-135-0x0000000001690000-0x00000000016F6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads