xloader | cfdb27a9ff39bd1aa5a0a43fe6e272c269a311f5748d8a13b2e705f7d66f16bd

General

Target

arrival notice.exe
Size

762KB
MD5

4196c697fa8a52ecddad63bf5ac9e8f9
SHA1

1179a7916f59fa2d88829a56f3f045e1cf32c418
SHA256

cfdb27a9ff39bd1aa5a0a43fe6e272c269a311f5748d8a13b2e705f7d66f16bd
SHA512

8c78d2a8276fd10c118732b194865fcd40615beb8ad47459e0ce5c67097d57d66c5764c0eaf8ebdbb7591b3ff03c26f0aa90d7dd7484b8f4709c9a79c607d5a0

Score

10^/10

xloader n58i loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

n58i

C2

http://www.nordicbatterybelt.net/n58i/

Decoy

southerncircumstance.com

mcsasco.com

ifbrick.com

societe-anonyme.net

bantank.xyz

dogecoin.beauty

aboutacoffee.com

babalandlordrealestate.com

tintgta.com

integrity.directory

parwnr.icu

poltishof.online

stayandstyle.com

ickjeame.xyz

currentmotors.ca

pond.fund

petrosterzis.com

deadbydaylightpoints.com

hotel-balzac.paris

focusmaintainance.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
behavioral2/memory/2456-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2456-126-0x000000000041D470-mapping.dmp	xloader
behavioral2/memory/3812-132-0x0000000002DD0000-0x0000000002DF9000-memory.dmp	xloader

Blocklisted process makes network request 5 IoCs

Processes:

cscript.exe

flow pid process

19 3812 cscript.exe
21 3812 cscript.exe
23 3812 cscript.exe
26 3812 cscript.exe
28 3812 cscript.exe

flow	pid	process
19	3812	cscript.exe
21	3812	cscript.exe
23	3812	cscript.exe
26	3812	cscript.exe
28	3812	cscript.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

arrival notice.exearrival notice.execscript.exe

description	pid	process	target process
PID 3172 set thread context of 2456	3172	arrival notice.exe	arrival notice.exe
PID 2456 set thread context of 3036	2456	arrival notice.exe	Explorer.EXE
PID 3812 set thread context of 3036	3812	cscript.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 45 IoCs

Processes:

arrival notice.exearrival notice.execscript.exe

pid	process
3172	arrival notice.exe
3172	arrival notice.exe
3172	arrival notice.exe
2456	arrival notice.exe
2456	arrival notice.exe
2456	arrival notice.exe
2456	arrival notice.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe
3812	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3036 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

arrival notice.execscript.exe

pid process

2456 arrival notice.exe
2456 arrival notice.exe
2456 arrival notice.exe
3812 cscript.exe
3812 cscript.exe

pid	process
3036	Explorer.EXE

pid	process
2456	arrival notice.exe
2456	arrival notice.exe
2456	arrival notice.exe
3812	cscript.exe
3812	cscript.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

arrival notice.exearrival notice.execscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3172	arrival notice.exe
Token: SeDebugPrivilege	2456	arrival notice.exe
Token: SeDebugPrivilege	3812	cscript.exe
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
3036 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3036 Explorer.EXE

pid	process
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE
3036	Explorer.EXE

pid	process
3036	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

arrival notice.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3172 wrote to memory of 2456	3172	arrival notice.exe	arrival notice.exe
PID 3036 wrote to memory of 3812	3036	Explorer.EXE	cscript.exe
PID 3036 wrote to memory of 3812	3036	Explorer.EXE	cscript.exe
PID 3036 wrote to memory of 3812	3036	Explorer.EXE	cscript.exe
PID 3812 wrote to memory of 2192	3812	cscript.exe	cmd.exe
PID 3812 wrote to memory of 2192	3812	cscript.exe	cmd.exe
PID 3812 wrote to memory of 2192	3812	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3036

C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
"C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3172

C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
"C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2456

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3812

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
3⤵
PID:2192

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2192-133-0x0000000000000000-mapping.dmp

Download
memory/2456-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2456-128-0x0000000000F00000-0x0000000000F11000-memory.dmp

Filesize
68KB

Download
memory/2456-127-0x0000000000F80000-0x00000000012A0000-memory.dmp

Filesize
3.1MB

Download
memory/2456-126-0x000000000041D470-mapping.dmp

Download
memory/3036-136-0x0000000005A10000-0x0000000005AFC000-memory.dmp

Filesize
944KB

Download
memory/3036-129-0x0000000001480000-0x0000000001537000-memory.dmp

Filesize
732KB

Download
memory/3172-121-0x0000000005890000-0x0000000005891000-memory.dmp

Filesize
4KB

Download
memory/3172-118-0x00000000058F0000-0x00000000058F1000-memory.dmp

Filesize
4KB

Download
memory/3172-123-0x0000000006590000-0x00000000065F1000-memory.dmp

Filesize
388KB

Download
memory/3172-122-0x0000000005860000-0x0000000005867000-memory.dmp

Filesize
28KB

Download
memory/3172-115-0x0000000000F50000-0x0000000000F51000-memory.dmp

Filesize
4KB

Download
memory/3172-120-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

Filesize
4KB

Download
memory/3172-119-0x0000000005850000-0x0000000005851000-memory.dmp

Filesize
4KB

Download
memory/3172-117-0x0000000005DF0000-0x0000000005DF1000-memory.dmp

Filesize
4KB

Download
memory/3172-124-0x0000000008BF0000-0x0000000008C1B000-memory.dmp

Filesize
172KB

Download
memory/3812-131-0x0000000000840000-0x0000000000867000-memory.dmp

Filesize
156KB

Download
memory/3812-132-0x0000000002DD0000-0x0000000002DF9000-memory.dmp

Filesize
164KB

Download
memory/3812-134-0x0000000004D60000-0x0000000005080000-memory.dmp

Filesize
3.1MB

Download
memory/3812-135-0x0000000004C80000-0x0000000004D10000-memory.dmp

Filesize
576KB

Download
memory/3812-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads