xloader | fd3393cafccfc4dd900d81a1314a7df6369114e72ba41c1bfa2fd6262c9f76db

General

Target

MIg6GXRiUigzu4y.exe
Size

839KB
MD5

3d9e5926621132ab400d7e48e75a305c
SHA1

76ff37c7cd8a6799209f07eb856a9fed573a47a1
SHA256

fd3393cafccfc4dd900d81a1314a7df6369114e72ba41c1bfa2fd6262c9f76db
SHA512

8a0ea160995aea373e23dc3e2d2840cbfc7826c50fd3d364f4f55506147496c74fce5c0305f62114663a0ac028a1c6998bbac5f1e2824e91ebe1d693403280c9

Score

10^/10

xloader nn40 loader rat spyware stealer

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nn40

Decoy

LYAg0yANOGEAGeaFOrA/

MQWuERZplP+VZy/uszI=

CF0oDN0JimIaGy/uszI=

ltJnyC+ReohYaiTvj1qbEA==

B9OkgdctVKBAFjSUaw==

sbDVwSZVVqVB11/deow8GA==

v1gHDe0pzno=

i+/0n2vHUfGPR98k77tukZ90MQ==

SUtCnbS96Qm21g==

8X9qzyt1dpAo31jXrXfKb49fBPY=

5KlPxqHzSstuFjSUaw==

0r/Kesv/zuanroxvNQW0Gm8=

FFgS7kfPYAqpdhhgRgnBJHY=

LgusAHrkrIoWr0FWIe2o/04UXPw=

vBq9Gvxa9wbKbS/uszI=

Z+q6HAZNNeqwwQ==

wbS4fMb06SjU5Kbseow8GA==

1mZEuZvJ/m0L9bof56PkkZ90MQ==

JCJIM74lHk/o+tiFOrA/

d14FrM8rGEgIzVkT67+3XaEh

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2016-63-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/2016-64-0x000000000041F640-mapping.dmp	xloader
behavioral1/memory/2016-66-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/2016-74-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1748-77-0x0000000000100000-0x000000000012C000-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:

MIg6GXRiUigzu4y.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Control Panel\International\Geo\Nation	MIg6GXRiUigzu4y.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 4 IoCs

Processes:

MIg6GXRiUigzu4y.exeMIg6GXRiUigzu4y.exerundll32.exe

description	pid	process	target process
PID 1920 set thread context of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 2016 set thread context of 1376	2016	MIg6GXRiUigzu4y.exe	Explorer.EXE
PID 2016 set thread context of 1376	2016	MIg6GXRiUigzu4y.exe	Explorer.EXE
PID 1748 set thread context of 1376	1748	rundll32.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3440072777-2118400376-1759599358-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

MIg6GXRiUigzu4y.exerundll32.exe

pid	process
2016	MIg6GXRiUigzu4y.exe
2016	MIg6GXRiUigzu4y.exe
2016	MIg6GXRiUigzu4y.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

MIg6GXRiUigzu4y.exerundll32.exe

pid	process
2016	MIg6GXRiUigzu4y.exe
2016	MIg6GXRiUigzu4y.exe
2016	MIg6GXRiUigzu4y.exe
2016	MIg6GXRiUigzu4y.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe
1748	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MIg6GXRiUigzu4y.exerundll32.exe

description pid process

Token: SeDebugPrivilege 2016 MIg6GXRiUigzu4y.exe
Token: SeDebugPrivilege 1748 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 5 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2016	MIg6GXRiUigzu4y.exe
Token: SeDebugPrivilege	1748	rundll32.exe

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

MIg6GXRiUigzu4y.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1920 wrote to memory of 2016	1920	MIg6GXRiUigzu4y.exe	MIg6GXRiUigzu4y.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1748	1376	Explorer.EXE	rundll32.exe
PID 1748 wrote to memory of 1396	1748	rundll32.exe	Firefox.exe
PID 1748 wrote to memory of 1396	1748	rundll32.exe	Firefox.exe
PID 1748 wrote to memory of 1396	1748	rundll32.exe	Firefox.exe
PID 1748 wrote to memory of 1396	1748	rundll32.exe	Firefox.exe
PID 1748 wrote to memory of 1396	1748	rundll32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\MIg6GXRiUigzu4y.exe
"C:\Users\Admin\AppData\Local\Temp\MIg6GXRiUigzu4y.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1920

C:\Users\Admin\AppData\Local\Temp\MIg6GXRiUigzu4y.exe
"C:\Users\Admin\AppData\Local\Temp\MIg6GXRiUigzu4y.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2016

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1396

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1376-69-0x0000000006AA0000-0x0000000006BC1000-memory.dmp

Filesize
1.1MB

Download
memory/1376-72-0x0000000006780000-0x000000000689B000-memory.dmp

Filesize
1.1MB

Download
memory/1376-81-0x0000000006BD0000-0x0000000006CBE000-memory.dmp

Filesize
952KB

Download
memory/1376-80-0x0000000006BD0000-0x0000000006CBE000-memory.dmp

Filesize
952KB

Download
memory/1748-79-0x00000000009F0000-0x0000000000A80000-memory.dmp

Filesize
576KB

Download
memory/1748-73-0x0000000000000000-mapping.dmp

Download
memory/1748-76-0x0000000000020000-0x000000000002E000-memory.dmp

Filesize
56KB

Download
memory/1748-77-0x0000000000100000-0x000000000012C000-memory.dmp

Filesize
176KB

Download
memory/1748-78-0x0000000002290000-0x0000000002593000-memory.dmp

Filesize
3.0MB

Download
memory/1920-57-0x0000000000470000-0x000000000047C000-memory.dmp

Filesize
48KB

Download
memory/1920-54-0x0000000000280000-0x0000000000358000-memory.dmp

Filesize
864KB

Download
memory/1920-59-0x0000000004180000-0x00000000041B2000-memory.dmp

Filesize
200KB

Download
memory/1920-58-0x0000000005F20000-0x0000000005F92000-memory.dmp

Filesize
456KB

Download
memory/1920-56-0x0000000000410000-0x0000000000430000-memory.dmp

Filesize
128KB

Download
memory/1920-55-0x0000000075481000-0x0000000075483000-memory.dmp

Filesize
8KB

Download
memory/2016-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2016-74-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2016-71-0x0000000000150000-0x0000000000161000-memory.dmp

Filesize
68KB

Download
memory/2016-68-0x0000000000110000-0x0000000000121000-memory.dmp

Filesize
68KB

Download
memory/2016-67-0x00000000009F0000-0x0000000000CF3000-memory.dmp

Filesize
3.0MB

Download
memory/2016-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2016-64-0x000000000041F640-mapping.dmp

Download
memory/2016-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2016-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads