smokeloader | cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 21:33

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General

Target

cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
Size

279KB
MD5

6ce5053c05174843a4d486fd5922fd6d
SHA1

5ac7310582c5e9b2b51acea9ab5da2d059dbcf9d
SHA256

cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32
SHA512

176c8db888d5cfb820a0112255269adec43c40a5e82262f17ca7b8f559734c03622c06a0c7864279a7f98dff30f67600b149140e345ff2541dab48cba89f9222
SSDEEP

6144:/Pp1RXxM6p/3wppTtvt0gUtHRYTB/APJ:/xPXxr4f9tNUN+YPJ

Score

10^/10

smokeloader pub2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub2

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

description	pid	process	target process
PID 2704 set thread context of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

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

Processes:

cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

description	pid	process	target process
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
PID 2704 wrote to memory of 2664	2704	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe	cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe

C:\Users\Admin\AppData\Local\Temp\cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
"C:\Users\Admin\AppData\Local\Temp\cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\AppData\Local\Temp\cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe
  "C:\Users\Admin\AppData\Local\Temp\cb1538b4b7281abc7c18ea8e7b9abf539dfc9e4dcac72b977601c45d184e8e32.exe"
  2⤵
  PID:2664

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/2664-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2704-5-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2704-4-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download