smokeloader | cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 08:10

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General

Target

0x000300000001ac99-126.exe
Size

300KB
MD5

ca58d4cf4a5e0725f844c8eae3f8ae67
SHA1

fbce92619ce23f4594846f2f789e513dab9f3239
SHA256

0e3774d65577253a820f1ee272d7a0c96e4c6a869ef8f749fe7f83d2fc49f054
SHA512

32bdfc2e72fff79c075d5f9ead8268f1e9e0648635fd977f6d8db62358c48d5451b64e639b1853bd87220a1157e74754e1109b3f1797f98ef02d5151fb09f4a9
SSDEEP

3072:qCQZiIdWYqLrMS5l0uAScmbcucv4Y8ngIw1MluGCMjjjjjjjjo:CRxqLrMa0EcmrchcTgGCM

Score

10^/10

smokeloader pub1 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2404	0x000300000001ac99-126.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2768	2404	WerFault.exe	30

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	0x000300000001ac99-126.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2768	2404	0x000300000001ac99-126.exe	31
PID 2404 wrote to memory of 2768	2404	0x000300000001ac99-126.exe	31
PID 2404 wrote to memory of 2768	2404	0x000300000001ac99-126.exe	31
PID 2404 wrote to memory of 2768	2404	0x000300000001ac99-126.exe	31

C:\Users\Admin\AppData\Local\Temp\0x000300000001ac99-126.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000001ac99-126.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 128
  2⤵
  - Program crash
  PID:2768

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

\Users\Admin\AppData\Local\Temp\CC4F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2404-0-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/2404-1-0x0000000000240000-0x000000000024A000-memory.dmp

Filesize
40KB

Download
memory/2404-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2404-9-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2404-8-0x0000000000240000-0x000000000024A000-memory.dmp

Filesize
40KB

Download
memory/2404-7-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/2404-6-0x0000000000400000-0x00000000046CB000-memory.dmp

Filesize
66.8MB

Download