smokeloader | 878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
08/10/2023, 15:38

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General

Target

NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
Size

286KB
MD5

b9ea009ab46c07ed971498d131b67233
SHA1

89a93ee4351aa170b00af86fc0ae718f0135bad9
SHA256

878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae
SHA512

78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d
SSDEEP

3072:2aSr5W1ev1Weqgob3IQgl1X6M1xOyy6vQbCQq97kIi4Z:FSrAYWtVb3Q1XPvy6vQbvqdri

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
1200	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2648	fdigfbu
2552	fdigfbu

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2648 set thread context of 2552	2648	fdigfbu	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 enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fdigfbu
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fdigfbu
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fdigfbu
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1192	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
1192	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found
1200	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1200	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1192	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
2552	fdigfbu

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2896 wrote to memory of 1192	2896	NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe	28
PID 2988 wrote to memory of 2648	2988	taskeng.exe	32
PID 2988 wrote to memory of 2648	2988	taskeng.exe	32
PID 2988 wrote to memory of 2648	2988	taskeng.exe	32
PID 2988 wrote to memory of 2648	2988	taskeng.exe	32
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33
PID 2648 wrote to memory of 2552	2648	fdigfbu	33

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe
  "C:\Users\Admin\AppData\Local\Temp\NEAS.878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae_JC.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1192

C:\Windows\system32\taskeng.exe
taskeng.exe {2C7D01E3-E78C-4FAA-BD28-33B0421EA0BB} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Roaming\fdigfbu
  C:\Users\Admin\AppData\Roaming\fdigfbu
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Users\Admin\AppData\Roaming\fdigfbu
    C:\Users\Admin\AppData\Roaming\fdigfbu
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2552

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\fdigfbu

Filesize
286KB

MD5
b9ea009ab46c07ed971498d131b67233

SHA1
89a93ee4351aa170b00af86fc0ae718f0135bad9

SHA256
878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

SHA512
78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

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

Filesize
286KB

MD5
b9ea009ab46c07ed971498d131b67233

SHA1
89a93ee4351aa170b00af86fc0ae718f0135bad9

SHA256
878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

SHA512
78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

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

Filesize
286KB

MD5
b9ea009ab46c07ed971498d131b67233

SHA1
89a93ee4351aa170b00af86fc0ae718f0135bad9

SHA256
878f2e91c03e56ba9719c1c7848ec02bcb27b0da5cb0259f8b05ecd20d7142ae

SHA512
78f80535f4666b96f6f9cfb9879a618f5fd7ef61a8724d169fd924367c00b0287541d039f8437e6107db88d01ed4f613087e352e4e5e854179fdc83681badd8d

Download Submit
memory/1192-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1192-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1192-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1192-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1192-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1200-8-0x00000000026F0000-0x0000000002706000-memory.dmp

Filesize
88KB

Download
memory/1200-24-0x0000000002AC0000-0x0000000002AD6000-memory.dmp

Filesize
88KB

Download
memory/2552-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2648-19-0x0000000002350000-0x0000000002450000-memory.dmp

Filesize
1024KB

Download
memory/2896-1-0x0000000002340000-0x0000000002440000-memory.dmp

Filesize
1024KB

Download
memory/2896-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download