xloader | d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

Analysis

max time kernel
74s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
29-06-2022 08:33

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General

Target

4b86af1f12bcc05b5586eec0f26e0ef9.exe
Size

876KB
MD5

4b86af1f12bcc05b5586eec0f26e0ef9
SHA1

750cec00b9f8b8298436e41bf8083c7842b95b05
SHA256

d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d
SHA512

325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Score

10^/10

xloader nn40 loader rat

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 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4040-135-0x0000000000400000-0x000000000042C000-memory.dmp	xloader

Suspicious use of SetThreadContext 1 IoCs

Processes:

4b86af1f12bcc05b5586eec0f26e0ef9.exe

description pid process target process

PID 948 set thread context of 4040 948 4b86af1f12bcc05b5586eec0f26e0ef9.exe 4b86af1f12bcc05b5586eec0f26e0ef9.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4b86af1f12bcc05b5586eec0f26e0ef9.exe

pid process

4040 4b86af1f12bcc05b5586eec0f26e0ef9.exe
4040 4b86af1f12bcc05b5586eec0f26e0ef9.exe

description	pid	process	target process
PID 948 set thread context of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe

pid	process
4040	4b86af1f12bcc05b5586eec0f26e0ef9.exe
4040	4b86af1f12bcc05b5586eec0f26e0ef9.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4b86af1f12bcc05b5586eec0f26e0ef9.exe

description	pid	process	target process
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe
PID 948 wrote to memory of 4040	948	4b86af1f12bcc05b5586eec0f26e0ef9.exe	4b86af1f12bcc05b5586eec0f26e0ef9.exe

C:\Users\Admin\AppData\Local\Temp\4b86af1f12bcc05b5586eec0f26e0ef9.exe
"C:\Users\Admin\AppData\Local\Temp\4b86af1f12bcc05b5586eec0f26e0ef9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:948

C:\Users\Admin\AppData\Local\Temp\4b86af1f12bcc05b5586eec0f26e0ef9.exe
"C:\Users\Admin\AppData\Local\Temp\4b86af1f12bcc05b5586eec0f26e0ef9.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4040

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/948-130-0x00000000006B0000-0x0000000000792000-memory.dmp

Filesize
904KB

Download
memory/948-131-0x0000000005830000-0x0000000005DD4000-memory.dmp

Filesize
5.6MB

Download
memory/948-132-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/948-133-0x0000000007870000-0x000000000790C000-memory.dmp

Filesize
624KB

Download
memory/4040-134-0x0000000000000000-mapping.dmp

Download
memory/4040-135-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4040-136-0x0000000001450000-0x000000000179A000-memory.dmp

Filesize
3.3MB

Download