smokeloader | dd78d58bf51e05510f783c4d1181c36efe85966a57a2aaa6acdf863f7cdb11e2

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
07/01/2024, 22:18

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General

Target

49eadf247a319f1ed386288b2d7a4a74.exe
Size

262KB
MD5

49eadf247a319f1ed386288b2d7a4a74
SHA1

543f40390319dbc47d25a08501bb8be1287f8d71
SHA256

dd78d58bf51e05510f783c4d1181c36efe85966a57a2aaa6acdf863f7cdb11e2
SHA512

03bf7d8a4258c5b3633a38d9009ec1ad1fdcf102818bec75188041093cf42973681edb0d407ab7d98445ab104cab9519de398bbfa87aa3a5e7d1aafc32e4e562
SSDEEP

6144:rL6l/Yi9soUT7NrkHHQlykdUD2uvGefdnCy6D4:Kl/Go6NrGQckd07SZD

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32

Signatures

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

Deletes itself 1 IoCs

pid	Process
1368	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
1080	hbehtwu
2548	hbehtwu

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 1080 set thread context of 2548	1080	hbehtwu	33

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	49eadf247a319f1ed386288b2d7a4a74.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	49eadf247a319f1ed386288b2d7a4a74.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	49eadf247a319f1ed386288b2d7a4a74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hbehtwu
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hbehtwu
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hbehtwu

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2000	49eadf247a319f1ed386288b2d7a4a74.exe
2000	49eadf247a319f1ed386288b2d7a4a74.exe
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found
1368	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2000	49eadf247a319f1ed386288b2d7a4a74.exe
2548	hbehtwu

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 2784 wrote to memory of 2000	2784	49eadf247a319f1ed386288b2d7a4a74.exe	28
PID 3028 wrote to memory of 1080	3028	taskeng.exe	32
PID 3028 wrote to memory of 1080	3028	taskeng.exe	32
PID 3028 wrote to memory of 1080	3028	taskeng.exe	32
PID 3028 wrote to memory of 1080	3028	taskeng.exe	32
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33
PID 1080 wrote to memory of 2548	1080	hbehtwu	33

C:\Users\Admin\AppData\Local\Temp\49eadf247a319f1ed386288b2d7a4a74.exe
"C:\Users\Admin\AppData\Local\Temp\49eadf247a319f1ed386288b2d7a4a74.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\49eadf247a319f1ed386288b2d7a4a74.exe
  "C:\Users\Admin\AppData\Local\Temp\49eadf247a319f1ed386288b2d7a4a74.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2000

C:\Windows\system32\taskeng.exe
taskeng.exe {C95D2D76-A208-422F-8735-4BA0DE3C3947} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Roaming\hbehtwu
  C:\Users\Admin\AppData\Roaming\hbehtwu
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Users\Admin\AppData\Roaming\hbehtwu
    C:\Users\Admin\AppData\Roaming\hbehtwu
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1080-22-0x0000000002510000-0x0000000002610000-memory.dmp

Filesize
1024KB

Download
memory/1368-7-0x0000000002B30000-0x0000000002B46000-memory.dmp

Filesize
88KB

Download
memory/1368-24-0x0000000002B50000-0x0000000002B66000-memory.dmp

Filesize
88KB

Download
memory/2000-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2000-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2000-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2000-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2548-23-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2548-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2784-5-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/2784-4-0x00000000024FF000-0x0000000002510000-memory.dmp

Filesize
68KB

Download