smokeloader | 387cb0c7adfffe604b16d02cad4c9fba30e4a497dd0f442fb41c00e45bc6274a

Analysis

max time kernel
150s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01/03/2023, 09:25

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General

Target

tmp.exe
Size

23KB
MD5

9c09ebda9d22433c9046c7667d1d1751
SHA1

b290288fcdfae614731f1bcd371ae0c8bd6da04c
SHA256

387cb0c7adfffe604b16d02cad4c9fba30e4a497dd0f442fb41c00e45bc6274a
SHA512

bb36b4ee7e818090ee59f344362d1931747e9937a4a11dffe825c527d3d5ac1e9f7ea7a553800295d73ceb6733da71baf9dbb09d2b9e12fbc75479d4ba1be030
SSDEEP

96:Mur4zOh7DYHWdzlZNhcsPWlgBVCc0e6kqPIiZiRJWe3T3efgMnMMKqULmJsLmWMW:jrThfBNe0WSBQcnHqAiLOcmV

Score

10^/10

smokeloader backdoor collection trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://esplogem.ga/

http://poclecta.ga/

rc4.i32

Signatures

Detects Smokeloader packer 3 IoCs

resource	yara_rule
behavioral2/memory/4340-162-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4340-164-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4340-166-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	tmp.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3172 set thread context of 4340	3172	tmp.exe	96

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tmp.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	tmp.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4464	powershell.exe
4464	powershell.exe
3172	tmp.exe
3172	tmp.exe
4340	tmp.exe
4340	tmp.exe
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3156	Process not Found

Suspicious behavior: MapViewOfSection 15 IoCs

pid	Process
4340	tmp.exe
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3172	tmp.exe
Token: SeDebugPrivilege	4464	powershell.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 4464	3172	tmp.exe	89
PID 3172 wrote to memory of 4464	3172	tmp.exe	89
PID 3172 wrote to memory of 4464	3172	tmp.exe	89
PID 3172 wrote to memory of 2188	3172	tmp.exe	95
PID 3172 wrote to memory of 2188	3172	tmp.exe	95
PID 3172 wrote to memory of 2188	3172	tmp.exe	95
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3172 wrote to memory of 4340	3172	tmp.exe	96
PID 3156 wrote to memory of 444	3156	Process not Found	105
PID 3156 wrote to memory of 444	3156	Process not Found	105
PID 3156 wrote to memory of 444	3156	Process not Found	105
PID 3156 wrote to memory of 444	3156	Process not Found	105
PID 3156 wrote to memory of 2156	3156	Process not Found	106
PID 3156 wrote to memory of 2156	3156	Process not Found	106
PID 3156 wrote to memory of 2156	3156	Process not Found	106
PID 3156 wrote to memory of 460	3156	Process not Found	107
PID 3156 wrote to memory of 460	3156	Process not Found	107
PID 3156 wrote to memory of 460	3156	Process not Found	107
PID 3156 wrote to memory of 460	3156	Process not Found	107
PID 3156 wrote to memory of 4464	3156	Process not Found	108
PID 3156 wrote to memory of 4464	3156	Process not Found	108
PID 3156 wrote to memory of 4464	3156	Process not Found	108
PID 3156 wrote to memory of 4464	3156	Process not Found	108
PID 3156 wrote to memory of 3320	3156	Process not Found	109
PID 3156 wrote to memory of 3320	3156	Process not Found	109
PID 3156 wrote to memory of 3320	3156	Process not Found	109
PID 3156 wrote to memory of 1896	3156	Process not Found	110
PID 3156 wrote to memory of 1896	3156	Process not Found	110
PID 3156 wrote to memory of 1896	3156	Process not Found	110
PID 3156 wrote to memory of 1896	3156	Process not Found	110
PID 3156 wrote to memory of 4604	3156	Process not Found	111
PID 3156 wrote to memory of 4604	3156	Process not Found	111
PID 3156 wrote to memory of 4604	3156	Process not Found	111

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

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4464
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  C:\Users\Admin\AppData\Local\Temp\tmp.exe
  2⤵
  PID:2188
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  C:\Users\Admin\AppData\Local\Temp\tmp.exe
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4340

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:444

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2156

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:460

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4464

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3320

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1896

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:4604

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hibc3r3g.acq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/444-176-0x0000000001040000-0x00000000010AB000-memory.dmp

Filesize
428KB

Download
memory/444-177-0x00000000010B0000-0x0000000001125000-memory.dmp

Filesize
468KB

Download
memory/444-178-0x0000000001040000-0x00000000010AB000-memory.dmp

Filesize
428KB

Download
memory/444-199-0x0000000001040000-0x00000000010AB000-memory.dmp

Filesize
428KB

Download
memory/460-200-0x0000000000800000-0x000000000080B000-memory.dmp

Filesize
44KB

Download
memory/460-201-0x0000000000800000-0x000000000080B000-memory.dmp

Filesize
44KB

Download
memory/1896-210-0x0000000000840000-0x000000000084B000-memory.dmp

Filesize
44KB

Download
memory/1896-208-0x0000000000840000-0x000000000084B000-memory.dmp

Filesize
44KB

Download
memory/1896-209-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1896-216-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/2156-198-0x0000000000F60000-0x0000000000F6C000-memory.dmp

Filesize
48KB

Download
memory/2156-197-0x0000000000F60000-0x0000000000F6C000-memory.dmp

Filesize
48KB

Download
memory/3156-165-0x0000000002B10000-0x0000000002B26000-memory.dmp

Filesize
88KB

Download
memory/3172-133-0x0000000000F40000-0x0000000000F4C000-memory.dmp

Filesize
48KB

Download
memory/3172-155-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/3172-135-0x0000000006960000-0x0000000006982000-memory.dmp

Filesize
136KB

Download
memory/3172-134-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/3320-205-0x0000000000BD0000-0x0000000000BDC000-memory.dmp

Filesize
48KB

Download
memory/3320-215-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/3320-207-0x0000000000BD0000-0x0000000000BDC000-memory.dmp

Filesize
48KB

Download
memory/3320-206-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/4340-164-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4340-162-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4340-166-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4464-203-0x0000000000570000-0x0000000000575000-memory.dmp

Filesize
20KB

Download
memory/4464-139-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-152-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-151-0x0000000006070000-0x000000000608E000-memory.dmp

Filesize
120KB

Download
memory/4464-143-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/4464-202-0x0000000000560000-0x0000000000569000-memory.dmp

Filesize
36KB

Download
memory/4464-154-0x0000000006560000-0x000000000657A000-memory.dmp

Filesize
104KB

Download
memory/4464-204-0x0000000000560000-0x0000000000569000-memory.dmp

Filesize
36KB

Download
memory/4464-140-0x00000000059A0000-0x0000000005A06000-memory.dmp

Filesize
408KB

Download
memory/4464-156-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-157-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-153-0x00000000076E0000-0x0000000007D5A000-memory.dmp

Filesize
6.5MB

Download
memory/4464-138-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-137-0x0000000005370000-0x0000000005998000-memory.dmp

Filesize
6.2MB

Download
memory/4464-136-0x0000000002A80000-0x0000000002AB6000-memory.dmp

Filesize
216KB

Download
memory/4464-158-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/4464-214-0x0000000000570000-0x0000000000575000-memory.dmp

Filesize
20KB

Download
memory/4604-213-0x00000000006E0000-0x00000000006ED000-memory.dmp

Filesize
52KB

Download
memory/4604-212-0x00000000006F0000-0x00000000006F7000-memory.dmp

Filesize
28KB

Download
memory/4604-211-0x00000000006E0000-0x00000000006ED000-memory.dmp

Filesize
52KB

Download
memory/4604-217-0x00000000006F0000-0x00000000006F7000-memory.dmp

Filesize
28KB

Download