smokeloader | bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27

Analysis

max time kernel
150s
max time network
62s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
18/09/2022, 09:27

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General

Target

bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
Size

289KB
MD5

4f0267828ff55742403114ef784c3899
SHA1

342fe9974b809a3eb792815ffbe148b2e3ccc0a0
SHA256

bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27
SHA512

d649d1a7bd51dfe712e4730f80cea611a692bff065698414c6552913088d239aca4fa4503638e9806bf5462cb718ad4e564311cfb44c73974543510c56dd3110
SSDEEP

6144:YyG5zLjYDves/3Vop1dtVa0lcNnigabwVff:Yy2z3YDveomrdWNiY

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

resource	yara_rule
behavioral1/memory/356-150-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/356-151-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/356-161-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/356-182-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2416-214-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3408-221-0x00000000005A0000-0x00000000005A9000-memory.dmp	family_smokeloader
behavioral1/memory/2416-246-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2416-247-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 2 IoCs

pid	Process
3408	uvshtar
2416	uvshtar

Deletes itself 1 IoCs

pid	Process
2312	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 3408 set thread context of 2416	3408	uvshtar	68

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uvshtar
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uvshtar
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uvshtar

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
356	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
356	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
2312	Process not Found
2312	Process not Found
2312	Process not Found
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2312	Process not Found
2312	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2312	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
356	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
2416	uvshtar

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2312	Process not Found
Token: SeCreatePagefilePrivilege	2312	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 2204 wrote to memory of 356	2204	bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe	66
PID 3408 wrote to memory of 2416	3408	uvshtar	68
PID 3408 wrote to memory of 2416	3408	uvshtar	68
PID 3408 wrote to memory of 2416	3408	uvshtar	68
PID 3408 wrote to memory of 2416	3408	uvshtar	68
PID 3408 wrote to memory of 2416	3408	uvshtar	68
PID 3408 wrote to memory of 2416	3408	uvshtar	68

C:\Users\Admin\AppData\Local\Temp\bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
"C:\Users\Admin\AppData\Local\Temp\bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe
  "C:\Users\Admin\AppData\Local\Temp\bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:356

C:\Users\Admin\AppData\Roaming\uvshtar
C:\Users\Admin\AppData\Roaming\uvshtar
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Roaming\uvshtar
  C:\Users\Admin\AppData\Roaming\uvshtar
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:2416

Network

MITRE ATT&CK Enterprise v6

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\uvshtar

Filesize
289KB

MD5
4f0267828ff55742403114ef784c3899

SHA1
342fe9974b809a3eb792815ffbe148b2e3ccc0a0

SHA256
bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27

SHA512
d649d1a7bd51dfe712e4730f80cea611a692bff065698414c6552913088d239aca4fa4503638e9806bf5462cb718ad4e564311cfb44c73974543510c56dd3110

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

Filesize
289KB

MD5
4f0267828ff55742403114ef784c3899

SHA1
342fe9974b809a3eb792815ffbe148b2e3ccc0a0

SHA256
bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27

SHA512
d649d1a7bd51dfe712e4730f80cea611a692bff065698414c6552913088d239aca4fa4503638e9806bf5462cb718ad4e564311cfb44c73974543510c56dd3110

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

Filesize
289KB

MD5
4f0267828ff55742403114ef784c3899

SHA1
342fe9974b809a3eb792815ffbe148b2e3ccc0a0

SHA256
bb4b30ba0619fb1672fe95050742eaf51ef1fb8310c9aa0ce267ffff059a2a27

SHA512
d649d1a7bd51dfe712e4730f80cea611a692bff065698414c6552913088d239aca4fa4503638e9806bf5462cb718ad4e564311cfb44c73974543510c56dd3110

Download Submit
memory/356-178-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-157-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-182-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/356-181-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-180-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-179-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-177-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-176-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-175-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-163-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-174-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-173-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-172-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-171-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-170-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-168-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-169-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-167-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-166-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-160-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-165-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-164-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-161-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/356-162-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-159-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-158-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/356-152-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-153-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-154-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-155-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/356-156-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-143-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-130-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-148-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-124-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-147-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-132-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-144-0x0000000000510000-0x000000000065A000-memory.dmp

Filesize
1.3MB

Download
memory/2204-146-0x0000000000450000-0x00000000004FE000-memory.dmp

Filesize
696KB

Download
memory/2204-145-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-142-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-141-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-140-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-139-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-138-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-137-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-135-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-134-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-133-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-131-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-149-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-129-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-120-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-128-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-127-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-126-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-125-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-123-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-121-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2204-122-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/2416-246-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2416-247-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3408-186-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-187-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-188-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-189-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-190-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-185-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-184-0x0000000077540000-0x00000000776CE000-memory.dmp

Filesize
1.6MB

Download
memory/3408-221-0x00000000005A0000-0x00000000005A9000-memory.dmp

Filesize
36KB

Download