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
Deletes itself 1 IoCs

Processes:

pid process

2312
Loads dropped DLL 1 IoCs

Processes:

7732.exe

pid process

492 7732.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

7732.exe

description pid process target process

PID 3284 set thread context of 492 3284 7732.exe 7732.exe

pid	process
2312

description	pid	process	target process
PID 3284 set thread context of 492	3284	7732.exe	7732.exe

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 3619 IoCs

Processes:

7732.exe

pid	process
492	7732.exe
492	7732.exe
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312

Suspicious behavior: MapViewOfSection 21 IoCs

Processes:

7732.exe

pid process

492 7732.exe
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
2312
Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

2312

pid	process
2312

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

7732.exe

description	pid	process	target process
PID 3284 wrote to memory of 492	3284	7732.exe	7732.exe
PID 3284 wrote to memory of 492	3284	7732.exe	7732.exe
PID 3284 wrote to memory of 492	3284	7732.exe	7732.exe
PID 3284 wrote to memory of 492	3284	7732.exe	7732.exe
PID 3284 wrote to memory of 492	3284	7732.exe	7732.exe
PID 2312 wrote to memory of 4056	2312		explorer.exe
PID 2312 wrote to memory of 4056	2312		explorer.exe
PID 2312 wrote to memory of 4056	2312		explorer.exe
PID 2312 wrote to memory of 4056	2312		explorer.exe
PID 2312 wrote to memory of 2056	2312		explorer.exe
PID 2312 wrote to memory of 2056	2312		explorer.exe
PID 2312 wrote to memory of 2056	2312		explorer.exe
PID 2312 wrote to memory of 2476	2312		explorer.exe
PID 2312 wrote to memory of 2476	2312		explorer.exe
PID 2312 wrote to memory of 2476	2312		explorer.exe
PID 2312 wrote to memory of 2476	2312		explorer.exe
PID 2312 wrote to memory of 1552	2312		explorer.exe
PID 2312 wrote to memory of 1552	2312		explorer.exe
PID 2312 wrote to memory of 1552	2312		explorer.exe
PID 2312 wrote to memory of 1552	2312		explorer.exe
PID 2312 wrote to memory of 3900	2312		explorer.exe
PID 2312 wrote to memory of 3900	2312		explorer.exe
PID 2312 wrote to memory of 3900	2312		explorer.exe
PID 2312 wrote to memory of 3188	2312		explorer.exe
PID 2312 wrote to memory of 3188	2312		explorer.exe
PID 2312 wrote to memory of 3188	2312		explorer.exe
PID 2312 wrote to memory of 3188	2312		explorer.exe
PID 2312 wrote to memory of 2464	2312		explorer.exe
PID 2312 wrote to memory of 2464	2312		explorer.exe
PID 2312 wrote to memory of 2464	2312		explorer.exe
PID 2312 wrote to memory of 3936	2312		explorer.exe
PID 2312 wrote to memory of 3936	2312		explorer.exe
PID 2312 wrote to memory of 3936	2312		explorer.exe
PID 2312 wrote to memory of 3936	2312		explorer.exe
PID 2312 wrote to memory of 3884	2312		explorer.exe
PID 2312 wrote to memory of 3884	2312		explorer.exe
PID 2312 wrote to memory of 3884	2312		explorer.exe
PID 2312 wrote to memory of 4080	2312		explorer.exe
PID 2312 wrote to memory of 4080	2312		explorer.exe
PID 2312 wrote to memory of 4080	2312		explorer.exe
PID 2312 wrote to memory of 4080	2312		explorer.exe

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:3284

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:492

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4056

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2056

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2476

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1552

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3900

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3188

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2464

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3936

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3884

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4080

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

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Downloads

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

SHA1
56210388a627b926162b36967045be06ffb1aad3

SHA256
f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

SHA512
fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

Download Submit
memory/492-3-0x0000000000402E39-mapping.dmp

Download
memory/492-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1552-15-0x0000000000000000-mapping.dmp

Download
memory/1552-16-0x00000000034D0000-0x00000000034DB000-memory.dmp

Filesize
44KB

Download
memory/1552-17-0x00000000034E0000-0x00000000034E7000-memory.dmp

Filesize
28KB

Download
memory/2056-9-0x0000000000000000-mapping.dmp

Download
memory/2056-10-0x00000000009B0000-0x00000000009BC000-memory.dmp

Filesize
48KB

Download
memory/2056-11-0x00000000009C0000-0x00000000009C7000-memory.dmp

Filesize
28KB

Download
memory/2312-5-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/2464-397-0x0000000000150000-0x000000000015C000-memory.dmp

Filesize
48KB

Download
memory/2464-396-0x0000000000000000-mapping.dmp

Download
memory/2464-398-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2476-13-0x0000000003520000-0x0000000003529000-memory.dmp

Filesize
36KB

Download
memory/2476-12-0x0000000000000000-mapping.dmp

Download
memory/2476-14-0x0000000003530000-0x0000000003534000-memory.dmp

Filesize
16KB

Download
memory/3188-243-0x0000000000000000-mapping.dmp

Download
memory/3188-245-0x0000000000A80000-0x0000000000A85000-memory.dmp

Filesize
20KB

Download
memory/3188-244-0x0000000000A70000-0x0000000000A79000-memory.dmp

Filesize
36KB

Download
memory/3884-554-0x0000000000950000-0x0000000000957000-memory.dmp

Filesize
28KB

Download
memory/3884-553-0x0000000000940000-0x000000000094D000-memory.dmp

Filesize
52KB

Download
memory/3884-552-0x0000000000000000-mapping.dmp

Download
memory/3900-92-0x0000000000000000-mapping.dmp

Download
memory/3900-93-0x0000000000D40000-0x0000000000D4F000-memory.dmp

Filesize
60KB

Download
memory/3900-94-0x0000000000D50000-0x0000000000D59000-memory.dmp

Filesize
36KB

Download
memory/3936-482-0x0000000000000000-mapping.dmp

Download
memory/3936-486-0x00000000034B0000-0x00000000034BB000-memory.dmp

Filesize
44KB

Download
memory/3936-489-0x00000000034C0000-0x00000000034C6000-memory.dmp

Filesize
24KB

Download
memory/4056-6-0x0000000000000000-mapping.dmp

Download
memory/4056-7-0x0000000000CF0000-0x0000000000D5B000-memory.dmp

Filesize
428KB

Download
memory/4056-8-0x0000000000D60000-0x0000000000DD4000-memory.dmp

Filesize
464KB

Download
memory/4080-632-0x0000000000000000-mapping.dmp

Download
memory/4080-634-0x0000000000540000-0x0000000000548000-memory.dmp

Filesize
32KB

Download
memory/4080-633-0x0000000000530000-0x000000000053B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads