smokeloader | c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

Analysis

max time kernel
300s
max time network
124s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
22/10/2023, 22:25

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General

Target

c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Size

180KB
MD5

f4e75c531a041e9c7de6fd603b6b20cf
SHA1

3c133d66d030c1714e9dda13ccaf115e0f3b11a0
SHA256

c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
SHA512

984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1
SSDEEP

3072:vyBN6fxr6AgsSrXxq2phoPEFpbZYXdsLIKFyQX:+A+Ag/rX82pCPIadDK

Score

10^/10

smokeloader up3 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Signatures

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

Deletes itself 1 IoCs

pid	Process
1392	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2760	tjuedrv
2680	tjuedrv

Loads dropped DLL 1 IoCs

pid	Process
2760	tjuedrv

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2760 set thread context of 2680	2760	tjuedrv	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	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tjuedrv
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tjuedrv
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tjuedrv

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2184	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
2184	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found
1392	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1392	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2184	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
2680	tjuedrv

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1392	Process not Found

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2412 wrote to memory of 2184	2412	c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe	28
PID 2672 wrote to memory of 2760	2672	taskeng.exe	32
PID 2672 wrote to memory of 2760	2672	taskeng.exe	32
PID 2672 wrote to memory of 2760	2672	taskeng.exe	32
PID 2672 wrote to memory of 2760	2672	taskeng.exe	32
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33
PID 2760 wrote to memory of 2680	2760	tjuedrv	33

C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
"C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
  "C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2184

C:\Windows\system32\taskeng.exe
taskeng.exe {16BCBD70-A94A-483D-9DFE-7EC546A53100} S-1-5-21-3837739534-3148647840-3445085216-1000:RBHOAWCN\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Roaming\tjuedrv
  C:\Users\Admin\AppData\Roaming\tjuedrv
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\AppData\Roaming\tjuedrv
    C:\Users\Admin\AppData\Roaming\tjuedrv
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2680

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\tjuedrv

Filesize
180KB

MD5
f4e75c531a041e9c7de6fd603b6b20cf

SHA1
3c133d66d030c1714e9dda13ccaf115e0f3b11a0

SHA256
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

SHA512
984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

Download Submit
C:\Users\Admin\AppData\Roaming\tjuedrv

Filesize
180KB

MD5
f4e75c531a041e9c7de6fd603b6b20cf

SHA1
3c133d66d030c1714e9dda13ccaf115e0f3b11a0

SHA256
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

SHA512
984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

Download Submit
C:\Users\Admin\AppData\Roaming\tjuedrv

Filesize
180KB

MD5
f4e75c531a041e9c7de6fd603b6b20cf

SHA1
3c133d66d030c1714e9dda13ccaf115e0f3b11a0

SHA256
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

SHA512
984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

Download Submit
\Users\Admin\AppData\Roaming\tjuedrv

Filesize
180KB

MD5
f4e75c531a041e9c7de6fd603b6b20cf

SHA1
3c133d66d030c1714e9dda13ccaf115e0f3b11a0

SHA256
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

SHA512
984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

Download Submit
memory/1392-8-0x0000000002710000-0x0000000002726000-memory.dmp

Filesize
88KB

Download
memory/1392-25-0x0000000002A70000-0x0000000002A86000-memory.dmp

Filesize
88KB

Download
memory/2184-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2184-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2184-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2184-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2412-1-0x0000000000990000-0x0000000000A90000-memory.dmp

Filesize
1024KB

Download
memory/2412-3-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2680-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2760-20-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download