smokeloader | d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

Analysis

max time kernel
160s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
06/10/2023, 20:39

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General

Target

SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
Size

274KB
MD5

b9fb5d09c9353294a07d3cbe9e3cdf32
SHA1

360671e99ada386546ee2562b575f6d7e6fdcc76
SHA256

d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95
SHA512

b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e
SSDEEP

3072:hXRpnwP6V6EBlO39wH9ejw56C/pcTcKgoIcVTE8bA4l8KU:JR+PTEBlOA9Cw5Z/pcTzIcxE8r8K

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
1244	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2732	dvjvgcr
2512	dvjvgcr

Loads dropped DLL 1 IoCs

pid	Process
2732	dvjvgcr

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 2732 set thread context of 2512	2732	dvjvgcr	32

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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dvjvgcr
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dvjvgcr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dvjvgcr

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1908	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
1908	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
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1244	Process not Found
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1244	Process not Found
1244	Process not Found
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1244	Process not Found
1244	Process not Found
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1244	Process not Found
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1244	Process not Found
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1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1244	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1908	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
2512	dvjvgcr

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 1732 wrote to memory of 1908	1732	SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe	27
PID 2720 wrote to memory of 2732	2720	taskeng.exe	31
PID 2720 wrote to memory of 2732	2720	taskeng.exe	31
PID 2720 wrote to memory of 2732	2720	taskeng.exe	31
PID 2720 wrote to memory of 2732	2720	taskeng.exe	31
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32
PID 2732 wrote to memory of 2512	2732	dvjvgcr	32

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1908

C:\Windows\system32\taskeng.exe
taskeng.exe {B5DA244D-0FE3-4923-A8B1-03DF74BAC905} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Roaming\dvjvgcr
  C:\Users\Admin\AppData\Roaming\dvjvgcr
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Users\Admin\AppData\Roaming\dvjvgcr
    C:\Users\Admin\AppData\Roaming\dvjvgcr
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2512

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\dvjvgcr

Filesize
274KB

MD5
b9fb5d09c9353294a07d3cbe9e3cdf32

SHA1
360671e99ada386546ee2562b575f6d7e6fdcc76

SHA256
d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

SHA512
b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

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

Filesize
274KB

MD5
b9fb5d09c9353294a07d3cbe9e3cdf32

SHA1
360671e99ada386546ee2562b575f6d7e6fdcc76

SHA256
d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

SHA512
b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

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

Filesize
274KB

MD5
b9fb5d09c9353294a07d3cbe9e3cdf32

SHA1
360671e99ada386546ee2562b575f6d7e6fdcc76

SHA256
d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

SHA512
b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

Download Submit
\Users\Admin\AppData\Roaming\dvjvgcr

Filesize
274KB

MD5
b9fb5d09c9353294a07d3cbe9e3cdf32

SHA1
360671e99ada386546ee2562b575f6d7e6fdcc76

SHA256
d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

SHA512
b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

Download Submit
memory/1244-26-0x0000000003990000-0x00000000039A6000-memory.dmp

Filesize
88KB

Download
memory/1244-8-0x0000000002B80000-0x0000000002B96000-memory.dmp

Filesize
88KB

Download
memory/1732-1-0x00000000023A0000-0x00000000024A0000-memory.dmp

Filesize
1024KB

Download
memory/1732-4-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1908-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1908-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1908-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1908-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1908-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2512-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2512-27-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2732-20-0x0000000002360000-0x0000000002460000-memory.dmp

Filesize
1024KB

Download