smokeloader | 7f40d0fe270f72aec76ec5348630f3b354ea4dd010d60edcdd865693824981de

General

Target

7732.exe
Size

645KB
MD5

985eef0c558b24da15d417113acbf045
SHA1

e8eeeb644b4498a8e27ebcc063d2a4f3c355eb83
SHA256

7f40d0fe270f72aec76ec5348630f3b354ea4dd010d60edcdd865693824981de
SHA512

6944467eeb9eb849a1a88b0a2c9cab6571c5c14b8f952064a3c261a7801da8a47fb979176dbf22d1c671fe5dee4ddccaee69dd6606835f91cbf666624c25db03

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://194.147.115.103/

https://194.147.115.103/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 2 IoCs

Processes:

bijdvjwbijdvjw

pid process

2288 bijdvjw
2212 bijdvjw
Deletes itself 1 IoCs

Processes:

pid process

3068
Loads dropped DLL 1 IoCs

Processes:

7732.exe

pid process

416 7732.exe
Suspicious use of SetThreadContext 2 IoCs

Processes:

7732.exebijdvjw

description pid process target process

PID 3160 set thread context of 416 3160 7732.exe 7732.exe
PID 2288 set thread context of 2212 2288 bijdvjw bijdvjw

pid	process
2288	bijdvjw
2212	bijdvjw

pid	process
3068

description	pid	process	target process
PID 3160 set thread context of 416	3160	7732.exe	7732.exe
PID 2288 set thread context of 2212	2288	bijdvjw	bijdvjw

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

7732.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	7732.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	7732.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	7732.exe

Suspicious behavior: EnumeratesProcesses 3612 IoCs

Processes:

7732.exe

pid	process
416	7732.exe
416	7732.exe
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068

Suspicious behavior: MapViewOfSection 21 IoCs

Processes:

7732.exe

pid process

416 7732.exe
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
3068
Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3068

pid	process
3068

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

7732.exebijdvjw

description	pid	process	target process
PID 3160 wrote to memory of 416	3160	7732.exe	7732.exe
PID 3160 wrote to memory of 416	3160	7732.exe	7732.exe
PID 3160 wrote to memory of 416	3160	7732.exe	7732.exe
PID 3160 wrote to memory of 416	3160	7732.exe	7732.exe
PID 3160 wrote to memory of 416	3160	7732.exe	7732.exe
PID 3068 wrote to memory of 1984	3068		explorer.exe
PID 3068 wrote to memory of 1984	3068		explorer.exe
PID 3068 wrote to memory of 1984	3068		explorer.exe
PID 3068 wrote to memory of 1984	3068		explorer.exe
PID 3068 wrote to memory of 2808	3068		explorer.exe
PID 3068 wrote to memory of 2808	3068		explorer.exe
PID 3068 wrote to memory of 2808	3068		explorer.exe
PID 3068 wrote to memory of 1800	3068		explorer.exe
PID 3068 wrote to memory of 1800	3068		explorer.exe
PID 3068 wrote to memory of 1800	3068		explorer.exe
PID 3068 wrote to memory of 1800	3068		explorer.exe
PID 3068 wrote to memory of 4020	3068		explorer.exe
PID 3068 wrote to memory of 4020	3068		explorer.exe
PID 3068 wrote to memory of 4020	3068		explorer.exe
PID 3068 wrote to memory of 4020	3068		explorer.exe
PID 3068 wrote to memory of 2348	3068		explorer.exe
PID 3068 wrote to memory of 2348	3068		explorer.exe
PID 3068 wrote to memory of 2348	3068		explorer.exe
PID 3068 wrote to memory of 2260	3068		explorer.exe
PID 3068 wrote to memory of 2260	3068		explorer.exe
PID 3068 wrote to memory of 2260	3068		explorer.exe
PID 3068 wrote to memory of 2260	3068		explorer.exe
PID 3068 wrote to memory of 3936	3068		explorer.exe
PID 3068 wrote to memory of 3936	3068		explorer.exe
PID 3068 wrote to memory of 3936	3068		explorer.exe
PID 3068 wrote to memory of 3164	3068		explorer.exe
PID 3068 wrote to memory of 3164	3068		explorer.exe
PID 3068 wrote to memory of 3164	3068		explorer.exe
PID 3068 wrote to memory of 3164	3068		explorer.exe
PID 3068 wrote to memory of 684	3068		explorer.exe
PID 3068 wrote to memory of 684	3068		explorer.exe
PID 3068 wrote to memory of 684	3068		explorer.exe
PID 3068 wrote to memory of 1748	3068		explorer.exe
PID 3068 wrote to memory of 1748	3068		explorer.exe
PID 3068 wrote to memory of 1748	3068		explorer.exe
PID 3068 wrote to memory of 1748	3068		explorer.exe
PID 2288 wrote to memory of 2212	2288	bijdvjw	bijdvjw
PID 2288 wrote to memory of 2212	2288	bijdvjw	bijdvjw
PID 2288 wrote to memory of 2212	2288	bijdvjw	bijdvjw
PID 2288 wrote to memory of 2212	2288	bijdvjw	bijdvjw
PID 2288 wrote to memory of 2212	2288	bijdvjw	bijdvjw

C:\Users\Admin\AppData\Local\Temp\7732.exe
"C:\Users\Admin\AppData\Local\Temp\7732.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3160

C:\Users\Admin\AppData\Local\Temp\7732.exe
"C:\Users\Admin\AppData\Local\Temp\7732.exe"
2⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:416

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1984

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2808

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1800

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4020

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2348

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2260

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3936

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3164

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:684

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1748

C:\Users\Admin\AppData\Roaming\bijdvjw
C:\Users\Admin\AppData\Roaming\bijdvjw
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2288

C:\Users\Admin\AppData\Roaming\bijdvjw
C:\Users\Admin\AppData\Roaming\bijdvjw
2⤵
- Executes dropped EXE
PID:2212

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\D6BB.tmp
MD5
50741b3f2d7debf5d2bed63d88404029

SHA1
56210388a627b926162b36967045be06ffb1aad3

SHA256
f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

SHA512
fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

Download Submit
C:\Users\Admin\AppData\Roaming\bijdvjw
MD5
985eef0c558b24da15d417113acbf045

SHA1
e8eeeb644b4498a8e27ebcc063d2a4f3c355eb83

SHA256
7f40d0fe270f72aec76ec5348630f3b354ea4dd010d60edcdd865693824981de

SHA512
6944467eeb9eb849a1a88b0a2c9cab6571c5c14b8f952064a3c261a7801da8a47fb979176dbf22d1c671fe5dee4ddccaee69dd6606835f91cbf666624c25db03

Download Submit
C:\Users\Admin\AppData\Roaming\bijdvjw
MD5
985eef0c558b24da15d417113acbf045

SHA1
e8eeeb644b4498a8e27ebcc063d2a4f3c355eb83

SHA256
7f40d0fe270f72aec76ec5348630f3b354ea4dd010d60edcdd865693824981de

SHA512
6944467eeb9eb849a1a88b0a2c9cab6571c5c14b8f952064a3c261a7801da8a47fb979176dbf22d1c671fe5dee4ddccaee69dd6606835f91cbf666624c25db03

Download Submit
C:\Users\Admin\AppData\Roaming\bijdvjw
MD5
985eef0c558b24da15d417113acbf045

SHA1
e8eeeb644b4498a8e27ebcc063d2a4f3c355eb83

SHA256
7f40d0fe270f72aec76ec5348630f3b354ea4dd010d60edcdd865693824981de

SHA512
6944467eeb9eb849a1a88b0a2c9cab6571c5c14b8f952064a3c261a7801da8a47fb979176dbf22d1c671fe5dee4ddccaee69dd6606835f91cbf666624c25db03

Download Submit
\Users\Admin\AppData\Local\Temp\D6BB.tmp
MD5
50741b3f2d7debf5d2bed63d88404029

SHA1
56210388a627b926162b36967045be06ffb1aad3

SHA256
f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

SHA512
fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

Download Submit
memory/416-3-0x0000000000402E39-mapping.dmp

Download
memory/416-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/684-625-0x0000000000AA0000-0x0000000000AA7000-memory.dmp

Filesize
28KB

Download
memory/684-624-0x0000000000A90000-0x0000000000A9D000-memory.dmp

Filesize
52KB

Download
memory/684-623-0x0000000000000000-mapping.dmp

Download
memory/1748-626-0x0000000000000000-mapping.dmp

Download
memory/1748-628-0x00000000004D0000-0x00000000004D8000-memory.dmp

Filesize
32KB

Download
memory/1748-627-0x00000000004C0000-0x00000000004CB000-memory.dmp

Filesize
44KB

Download
memory/1800-14-0x0000000000D40000-0x0000000000D44000-memory.dmp

Filesize
16KB

Download
memory/1800-13-0x0000000000D30000-0x0000000000D39000-memory.dmp

Filesize
36KB

Download
memory/1800-12-0x0000000000000000-mapping.dmp

Download
memory/1984-8-0x0000000000F50000-0x0000000000FC4000-memory.dmp

Filesize
464KB

Download
memory/1984-7-0x0000000000EE0000-0x0000000000F4B000-memory.dmp

Filesize
428KB

Download
memory/1984-6-0x0000000000000000-mapping.dmp

Download
memory/2212-632-0x0000000000402E39-mapping.dmp

Download
memory/2260-200-0x0000000000000000-mapping.dmp

Download
memory/2260-206-0x0000000000480000-0x0000000000489000-memory.dmp

Filesize
36KB

Download
memory/2260-209-0x0000000000490000-0x0000000000495000-memory.dmp

Filesize
20KB

Download
memory/2348-91-0x00000000005A0000-0x00000000005AF000-memory.dmp

Filesize
60KB

Download
memory/2348-92-0x00000000005B0000-0x00000000005B9000-memory.dmp

Filesize
36KB

Download
memory/2348-90-0x0000000000000000-mapping.dmp

Download
memory/2808-10-0x0000000000510000-0x000000000051C000-memory.dmp

Filesize
48KB

Download
memory/2808-11-0x0000000000520000-0x0000000000527000-memory.dmp

Filesize
28KB

Download
memory/2808-9-0x0000000000000000-mapping.dmp

Download
memory/3068-5-0x0000000000780000-0x0000000000795000-memory.dmp

Filesize
84KB

Download
memory/3164-545-0x0000000000480000-0x000000000048B000-memory.dmp

Filesize
44KB

Download
memory/3164-546-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/3164-544-0x0000000000000000-mapping.dmp

Download
memory/3936-317-0x0000000000140000-0x000000000014C000-memory.dmp

Filesize
48KB

Download
memory/3936-318-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/3936-316-0x0000000000000000-mapping.dmp

Download
memory/4020-17-0x00000000010C0000-0x00000000010C7000-memory.dmp

Filesize
28KB

Download
memory/4020-16-0x00000000010B0000-0x00000000010BB000-memory.dmp

Filesize
44KB

Download
memory/4020-15-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads