smokeloader | 97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f

Analysis

max time kernel
300s
max time network
122s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
27/11/2023, 04:59

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General

Target

97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
Size

288KB
MD5

00d98163632e375528a86592695e055b
SHA1

a8de9da544ec6497afa17789ff35ce70d9b5ff5f
SHA256

97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f
SHA512

2e9a55aaefaa8960cc874f018805154f0081213634053b30e697022d2762f25afa6d73d973a9ecd9a80ffdfc520f01aa1539c4db44aa7a0819eb9e93ddc68c77
SSDEEP

3072:f31ljgDLVr7lYnx3ODF8PPpjJKhRb7a2Q5mggPo+5kVyBk3eFx/RiPB:d5gDplYnRMF2pjYhRb22xgC+

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

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
1204	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2708	vrcafub
2692	vrcafub

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2708 set thread context of 2692	2708	vrcafub	31

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 enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vrcafub
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vrcafub
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vrcafub

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2176	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
2176	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
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1204	Process not Found
1204	Process not Found
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1204	Process not Found
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1204	Process not Found
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1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2176	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
2692	vrcafub

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1204	Process not Found

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2000 wrote to memory of 2176	2000	97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe	28
PID 2812 wrote to memory of 2708	2812	taskeng.exe	30
PID 2812 wrote to memory of 2708	2812	taskeng.exe	30
PID 2812 wrote to memory of 2708	2812	taskeng.exe	30
PID 2812 wrote to memory of 2708	2812	taskeng.exe	30
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31
PID 2708 wrote to memory of 2692	2708	vrcafub	31

C:\Users\Admin\AppData\Local\Temp\97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
"C:\Users\Admin\AppData\Local\Temp\97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe
  "C:\Users\Admin\AppData\Local\Temp\97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2176

C:\Windows\system32\taskeng.exe
taskeng.exe {0616AA69-66FD-483E-A85C-8829280A650F} S-1-5-21-2952504676-3105837840-1406404655-1000:URUOZWGF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Roaming\vrcafub
  C:\Users\Admin\AppData\Roaming\vrcafub
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Users\Admin\AppData\Roaming\vrcafub
    C:\Users\Admin\AppData\Roaming\vrcafub
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2692

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\vrcafub

Filesize
288KB

MD5
00d98163632e375528a86592695e055b

SHA1
a8de9da544ec6497afa17789ff35ce70d9b5ff5f

SHA256
97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f

SHA512
2e9a55aaefaa8960cc874f018805154f0081213634053b30e697022d2762f25afa6d73d973a9ecd9a80ffdfc520f01aa1539c4db44aa7a0819eb9e93ddc68c77

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

Filesize
288KB

MD5
00d98163632e375528a86592695e055b

SHA1
a8de9da544ec6497afa17789ff35ce70d9b5ff5f

SHA256
97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f

SHA512
2e9a55aaefaa8960cc874f018805154f0081213634053b30e697022d2762f25afa6d73d973a9ecd9a80ffdfc520f01aa1539c4db44aa7a0819eb9e93ddc68c77

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

Filesize
288KB

MD5
00d98163632e375528a86592695e055b

SHA1
a8de9da544ec6497afa17789ff35ce70d9b5ff5f

SHA256
97ae3ada3c215af01794bfd8e1640effc5ad19cc3307178267a4d6d072f6d55f

SHA512
2e9a55aaefaa8960cc874f018805154f0081213634053b30e697022d2762f25afa6d73d973a9ecd9a80ffdfc520f01aa1539c4db44aa7a0819eb9e93ddc68c77

Download Submit
memory/1204-24-0x0000000002AF0000-0x0000000002B06000-memory.dmp

Filesize
88KB

Download
memory/1204-7-0x0000000002AB0000-0x0000000002AC6000-memory.dmp

Filesize
88KB

Download
memory/2000-4-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2000-2-0x0000000002BC0000-0x0000000002CC0000-memory.dmp

Filesize
1024KB

Download
memory/2176-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2176-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2176-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2176-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-23-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-27-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2708-19-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download