smokeloader | 3c8c76af58660f08e621d30c8a1debb0396012aca038122f3bf7044b27f33d71

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 11:22

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General

Target

2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe
Size

147KB
MD5

4fc4ffab97945fa06d5695b89f79bc5b
SHA1

f53f97926ec09e6e28fce27be0882a42c5655298
SHA256

3c8c76af58660f08e621d30c8a1debb0396012aca038122f3bf7044b27f33d71
SHA512

33e041560bf02866596a1e3adfdcea20db4f5bdee0153d35816988c13b6d9977f60cb1569278c43443bd84ba3197715725d80058affe780e9a7f3e1c411af885
SSDEEP

3072:rbB+8HlO55ZXIGPgWtNpykMZEsWFH+LeICAxHxyq:/EjXM+zH+iPAf

Score

10^/10

smokeloader ku11 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

ku11

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1236	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3044	1236	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	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 3044	1236	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe	31
PID 1236 wrote to memory of 3044	1236	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe	31
PID 1236 wrote to memory of 3044	1236	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe	31
PID 1236 wrote to memory of 3044	1236	2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-25_4fc4ffab97945fa06d5695b89f79bc5b_karagany_mafia.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 164
  2⤵
  - Program crash
  PID:3044

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\5C1B.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/1236-0-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1236-2-0x0000000000150000-0x000000000015A000-memory.dmp

Filesize
40KB

Download
memory/1236-1-0x0000000000140000-0x000000000014A000-memory.dmp

Filesize
40KB

Download
memory/1236-6-0x0000000000150000-0x000000000015A000-memory.dmp

Filesize
40KB

Download