smokeloader | b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 14:02

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General

Target

b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe
Size

261KB
MD5

d97e8e455e8056e00732d769c73d5aba
SHA1

4bbab1b77f03e47cbe0099e0078080885d28161f
SHA256

b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6
SHA512

f9a4f4609e17d9297751288eedc89d7f607525e29050872f4a6f61f762fc6fd342818facd790655ddb5314bd60bc547d6e1135895bce394b864e23a32b23c65b
SSDEEP

3072:a6eGBHVWMLs1joNz5+0Rw8LLov/bPIceVzSYkNPdSgUUBg/V22LTM/h3:MGB1HLEj0RweLo+IFUUCVHT

Score

10^/10

smokeloader pub4 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1920	1824	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 1920	1824	b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe	31
PID 1824 wrote to memory of 1920	1824	b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe	31
PID 1824 wrote to memory of 1920	1824	b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe	31
PID 1824 wrote to memory of 1920	1824	b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe	31

C:\Users\Admin\AppData\Local\Temp\b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe
"C:\Users\Admin\AppData\Local\Temp\b84d4b4eb437ed921c0ab75eb16bf7605364f7054ca77ec6e9307d36d397faf6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 136
  2⤵
  - Program crash
  PID:1920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1824-1-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/1824-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1824-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1824-4-0x0000000000400000-0x0000000002C2F000-memory.dmp

Filesize
40.2MB

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