xloader | 0cfac9ebd9e0bb5a2f128f38b9879e4f103208c8559a68a18bb099fa2b8bf18e

General

Target

tmp.exe
Size

635KB
MD5

e32e254b685cd1709f4ef86b5441d84e
SHA1

55d4645e42f4104229ced1fff95532ee7bd6632a
SHA256

0cfac9ebd9e0bb5a2f128f38b9879e4f103208c8559a68a18bb099fa2b8bf18e
SHA512

4e01d48e6827da547c27b3f6063ec87537d98532b7a2c81e37a8531abe664a3c5bef2629292be1c12c7da8a1a0a100f64b007869c34e3951026fa2f9af25419d

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3820-137-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3820-139-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/256-145-0x0000000000880000-0x00000000008AC000-memory.dmp	xloader
behavioral2/memory/256-149-0x0000000000880000-0x00000000008AC000-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-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	tmp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exeraserver.exe

description	pid	process	target process
PID 2160 set thread context of 3820	2160	tmp.exe	tmp.exe
PID 3820 set thread context of 380	3820	tmp.exe	Explorer.EXE
PID 256 set thread context of 380	256	raserver.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

tmp.exetmp.exeraserver.exe

pid	process
2160	tmp.exe
2160	tmp.exe
3820	tmp.exe
3820	tmp.exe
3820	tmp.exe
3820	tmp.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

380 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

tmp.exeraserver.exe

pid process

3820 tmp.exe
3820 tmp.exe
3820 tmp.exe
256 raserver.exe
256 raserver.exe
256 raserver.exe
256 raserver.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

tmp.exetmp.exeraserver.exe

description pid process

Token: SeDebugPrivilege 2160 tmp.exe
Token: SeDebugPrivilege 3820 tmp.exe
Token: SeDebugPrivilege 256 raserver.exe

pid	process
380	Explorer.EXE

pid	process
3820	tmp.exe
3820	tmp.exe
3820	tmp.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe
256	raserver.exe

description	pid	process
Token: SeDebugPrivilege	2160	tmp.exe
Token: SeDebugPrivilege	3820	tmp.exe
Token: SeDebugPrivilege	256	raserver.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

tmp.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 2160 wrote to memory of 4252	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 4252	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 4252	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 2160 wrote to memory of 3820	2160	tmp.exe	tmp.exe
PID 380 wrote to memory of 256	380	Explorer.EXE	raserver.exe
PID 380 wrote to memory of 256	380	Explorer.EXE	raserver.exe
PID 380 wrote to memory of 256	380	Explorer.EXE	raserver.exe
PID 256 wrote to memory of 3792	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 3792	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 3792	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 4264	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 4264	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 4264	256	raserver.exe	cmd.exe
PID 256 wrote to memory of 5060	256	raserver.exe	Firefox.exe
PID 256 wrote to memory of 5060	256	raserver.exe	Firefox.exe
PID 256 wrote to memory of 5060	256	raserver.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:380

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:2160

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
PID:4252

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:3820

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.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:256

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:3792

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:4264

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:5060

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

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memory/256-149-0x0000000000880000-0x00000000008AC000-memory.dmp

Filesize
176KB

Download
memory/256-144-0x0000000000060000-0x000000000007F000-memory.dmp

Filesize
124KB

Download
memory/256-143-0x0000000000000000-mapping.dmp

Download
memory/256-147-0x00000000026B0000-0x0000000002740000-memory.dmp

Filesize
576KB

Download
memory/256-146-0x00000000028A0000-0x0000000002BEA000-memory.dmp

Filesize
3.3MB

Download
memory/256-145-0x0000000000880000-0x00000000008AC000-memory.dmp

Filesize
176KB

Download
memory/380-142-0x0000000004720000-0x00000000047EC000-memory.dmp

Filesize
816KB

Download
memory/380-150-0x0000000002F60000-0x0000000003048000-memory.dmp

Filesize
928KB

Download
memory/380-148-0x0000000002F60000-0x0000000003048000-memory.dmp

Filesize
928KB

Download
memory/2160-130-0x0000000000360000-0x0000000000406000-memory.dmp

Filesize
664KB

Download
memory/2160-131-0x0000000007800000-0x0000000007DA4000-memory.dmp

Filesize
5.6MB

Download
memory/2160-134-0x0000000009830000-0x00000000098CC000-memory.dmp

Filesize
624KB

Download
memory/2160-133-0x0000000007270000-0x000000000727A000-memory.dmp

Filesize
40KB

Download
memory/2160-132-0x00000000072F0000-0x0000000007382000-memory.dmp

Filesize
584KB

Download
memory/3792-151-0x0000000000000000-mapping.dmp

Download
memory/3820-141-0x00000000013B0000-0x00000000013C1000-memory.dmp

Filesize
68KB

Download
memory/3820-140-0x00000000013D0000-0x000000000171A000-memory.dmp

Filesize
3.3MB

Download
memory/3820-139-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3820-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3820-136-0x0000000000000000-mapping.dmp

Download
memory/4252-135-0x0000000000000000-mapping.dmp

Download
memory/4264-153-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads