smokeloader | a155c38fa6f003c89d32079c04334a257ea4ad9833664626e5c2bbd4ddbb3e24

Analysis

max time kernel
51s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26/03/2025, 22:41

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General

Target

243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
Size

460KB
MD5

33eb55a002f0da6c775958fbefd39a3a
SHA1

6e2042d7e7bb4eabee4cd68820d74a96ae84437c
SHA256

243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b
SHA512

f9fded9865fa1d4ebd987c3c4e8334c4b61d793d3ab1a3fb009ba24bd8e5c47e119a1e86cd7e7e511e973c7dba6a855a2a4a41efe257308b02f235e100fdae33
SSDEEP

12288:Ya+XwNiB5rd6i9CkJPEcXgqAY2+o8z/78:SgNiDrIiRJ/PrRzw

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
3024	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.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	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30
PID 2496 wrote to memory of 3024	2496	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	30

C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
"C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
  "C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe"
  2⤵
  - Loads dropped DLL
  PID:3024

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\65B3.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2496-15-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-1-0x0000000000270000-0x00000000002EA000-memory.dmp

Filesize
488KB

Download
memory/2496-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-3-0x0000000000360000-0x0000000000370000-memory.dmp

Filesize
64KB

Download
memory/2496-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2496-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-6-0x00000000021A0000-0x00000000021E8000-memory.dmp

Filesize
288KB

Download
memory/2496-7-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/2496-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/3024-8-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3024-9-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3024-13-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3024-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-18-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3024-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download