xloader | c9777cb78779de98104f1a01584f9df07e39b7ace7d5e6686d225e7261bd9447

General

Target

tmp.exe
Size

517KB
MD5

a09f93f7606aa64851c9a8f82317b72f
SHA1

c33ea2eb219a088610847905251e5e2c3d2c87a2
SHA256

c9777cb78779de98104f1a01584f9df07e39b7ace7d5e6686d225e7261bd9447
SHA512

c5923ec47cc02a048fbbe8876c6f982d56dd6ea8936848db5a51ec6ad8ce16df9271a00c187a9ea653beaa490ba769c1339a5c3384180ba4d3961c471b7dfd59

Score

10^/10

xloader nn40 loader rat spyware stealer suricata

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
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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3080-137-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3080-143-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/4036-146-0x0000000000120000-0x000000000014C000-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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation tmp.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	tmp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exewlanext.exe

description	pid	process	target process
PID 4204 set thread context of 3080	4204	tmp.exe	tmp.exe
PID 3080 set thread context of 2700	3080	tmp.exe	Explorer.EXE
PID 4036 set thread context of 2700	4036	wlanext.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

tmp.exetmp.exewlanext.exe

pid	process
4204	tmp.exe
4204	tmp.exe
3080	tmp.exe
3080	tmp.exe
3080	tmp.exe
3080	tmp.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2700 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

tmp.exewlanext.exe

pid process

3080 tmp.exe
3080 tmp.exe
3080 tmp.exe
4036 wlanext.exe
4036 wlanext.exe
4036 wlanext.exe
4036 wlanext.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

tmp.exetmp.exewlanext.exe

description pid process

Token: SeDebugPrivilege 4204 tmp.exe
Token: SeDebugPrivilege 3080 tmp.exe
Token: SeDebugPrivilege 4036 wlanext.exe

pid	process
2700	Explorer.EXE

pid	process
3080	tmp.exe
3080	tmp.exe
3080	tmp.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe
4036	wlanext.exe

description	pid	process
Token: SeDebugPrivilege	4204	tmp.exe
Token: SeDebugPrivilege	3080	tmp.exe
Token: SeDebugPrivilege	4036	wlanext.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

tmp.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 4204 wrote to memory of 1856	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 1856	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 1856	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 4204 wrote to memory of 3080	4204	tmp.exe	tmp.exe
PID 2700 wrote to memory of 4036	2700	Explorer.EXE	wlanext.exe
PID 2700 wrote to memory of 4036	2700	Explorer.EXE	wlanext.exe
PID 2700 wrote to memory of 4036	2700	Explorer.EXE	wlanext.exe
PID 4036 wrote to memory of 4748	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 4748	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 4748	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 2476	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 2476	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 2476	4036	wlanext.exe	cmd.exe
PID 4036 wrote to memory of 4724	4036	wlanext.exe	Firefox.exe
PID 4036 wrote to memory of 4724	4036	wlanext.exe	Firefox.exe
PID 4036 wrote to memory of 4724	4036	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2700

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4204

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
PID:1856

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3080

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4304

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4792

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4092

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2948

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.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:4036

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:4748

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:2476

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4724

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

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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/1856-135-0x0000000000000000-mapping.dmp

Download
memory/2476-152-0x0000000000000000-mapping.dmp

Download
memory/2700-141-0x00000000084C0000-0x0000000008650000-memory.dmp

Filesize
1.6MB

Download
memory/2700-148-0x00000000033A0000-0x00000000034A0000-memory.dmp

Filesize
1024KB

Download
memory/2700-149-0x00000000033A0000-0x00000000034A0000-memory.dmp

Filesize
1024KB

Download
memory/3080-140-0x0000000001550000-0x0000000001561000-memory.dmp

Filesize
68KB

Download
memory/3080-143-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3080-136-0x0000000000000000-mapping.dmp

Download
memory/3080-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3080-139-0x0000000001580000-0x00000000018CA000-memory.dmp

Filesize
3.3MB

Download
memory/4036-142-0x0000000000000000-mapping.dmp

Download
memory/4036-144-0x0000000000AA0000-0x0000000000DEA000-memory.dmp

Filesize
3.3MB

Download
memory/4036-146-0x0000000000120000-0x000000000014C000-memory.dmp

Filesize
176KB

Download
memory/4036-145-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

Download
memory/4036-147-0x0000000000910000-0x00000000009A0000-memory.dmp

Filesize
576KB

Download
memory/4204-130-0x00000000001F0000-0x0000000000278000-memory.dmp

Filesize
544KB

Download
memory/4204-134-0x000000000AC80000-0x000000000AD1C000-memory.dmp

Filesize
624KB

Download
memory/4204-133-0x00000000070F0000-0x00000000070FA000-memory.dmp

Filesize
40KB

Download
memory/4204-132-0x0000000007170000-0x0000000007202000-memory.dmp

Filesize
584KB

Download
memory/4204-131-0x0000000007680000-0x0000000007C24000-memory.dmp

Filesize
5.6MB

Download
memory/4748-150-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads