smokeloader | 7319656b4c5c0f3c42526657e96c0732322806d7824e992baa4b816a525aae98

Analysis

max time kernel
34s
max time network
40s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
23-06-2023 22:55

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General

Target

Botnets PACK/Botnets PACK/Smoke Loader Original Stub/smokeloader.exe
Size

227KB
MD5

c5eef97b1208860a67749d997ef6ee4e
SHA1

612a551d0500188646727ab0c449a8886a6bb540
SHA256

aeaf5634f6749e646b02d37d4fc1e5ad6cdae2cb26799cb46779917a17e41dc6
SHA512

f7674eacb5a65160036a0302842515ad17d377b2f8ca7a7cf75b75fcb79442ff79161f13b13364b75a78a45555d0172c736d11763586903ff57f12c06403bd70
SSDEEP

3072:14lcCQgZEKJtkmt6SjiK29hxbn0yd0bmxlM:16cCQg+4yXJK2h1bBx

Score

10^/10

smokeloader backdoor persistence trojan

Malware Config

Extracted

Family

smokeloader

Version

2017

http://dogewareservice.ru/

Signatures

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

Checks computer location settings 2 TTPs 2 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-1-5-21-3259792829-1422303781-2047321929-1000\Control Panel\International\Geo\Nation	smokeloader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Control Panel\International\Geo\Nation	Windows Services.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Startup.lnk	Launcher.exe

Executes dropped EXE 3 IoCs

pid	Process
3260	Windows Services.exe
2608	Secure System Shell.exe
1464	Runtime Explorer.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Explorer = "C:\\Windows\\IMF\\\\Windows Services.exe"	Launcher.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk 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\Services\Disk\Enum	CoreShell.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	CoreShell.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File created	C:\Windows\IMF\LICENCE.dat	Launcher.exe
File created	C:\Windows\IMF\Runtime Explorer.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Secure System Shell.exe	Launcher.exe
File created	C:\Windows\IMF\Windows Services.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Windows Services.exe	Launcher.exe
File created	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File opened for modification	C:\Windows\IMF\Runtime Explorer.exe	Launcher.exe
File created	C:\Windows\IMF\Secure System Shell.exe.tmp	Launcher.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4784	4212	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4828	Launcher.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
1416	powershell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
1416	powershell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
3260	Windows Services.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
4848	CoreShell.exe
3260	Windows Services.exe
3260	Windows Services.exe
3260	Windows Services.exe
4848	CoreShell.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4848	CoreShell.exe
4848	CoreShell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4828	Launcher.exe
Token: SeDebugPrivilege	1416	powershell.exe
Token: SeDebugPrivilege	3260	Windows Services.exe
Token: SeDebugPrivilege	2608	Secure System Shell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1464	Runtime Explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 4828	676	smokeloader.exe	78
PID 676 wrote to memory of 4828	676	smokeloader.exe	78
PID 676 wrote to memory of 4828	676	smokeloader.exe	78
PID 676 wrote to memory of 4848	676	smokeloader.exe	79
PID 676 wrote to memory of 4848	676	smokeloader.exe	79
PID 676 wrote to memory of 4848	676	smokeloader.exe	79
PID 4828 wrote to memory of 1416	4828	Launcher.exe	80
PID 4828 wrote to memory of 1416	4828	Launcher.exe	80
PID 4828 wrote to memory of 1416	4828	Launcher.exe	80
PID 4828 wrote to memory of 3260	4828	Launcher.exe	82
PID 4828 wrote to memory of 3260	4828	Launcher.exe	82
PID 4828 wrote to memory of 3260	4828	Launcher.exe	82
PID 3260 wrote to memory of 2608	3260	Windows Services.exe	83
PID 3260 wrote to memory of 2608	3260	Windows Services.exe	83
PID 3260 wrote to memory of 2608	3260	Windows Services.exe	83
PID 3260 wrote to memory of 1464	3260	Windows Services.exe	84
PID 3260 wrote to memory of 1464	3260	Windows Services.exe	84
PID 3260 wrote to memory of 1464	3260	Windows Services.exe	84
PID 4848 wrote to memory of 4212	4848	CoreShell.exe	85
PID 4848 wrote to memory of 4212	4848	CoreShell.exe	85
PID 4848 wrote to memory of 4212	4848	CoreShell.exe	85

C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\smokeloader.exe
"C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\smokeloader.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:676
- C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\nssdbm3\Launcher.exe
  "C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\nssdbm3\Launcher.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4828
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Windows\IMF\
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1416
- - C:\Windows\IMF\Windows Services.exe
    "C:\Windows\IMF\Windows Services.exe" {Arguments If Needed}
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3260
  - - C:\Windows\IMF\Secure System Shell.exe
      "C:\Windows\IMF\Secure System Shell.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:2608
  - - C:\Windows\IMF\Runtime Explorer.exe
      "C:\Windows\IMF\Runtime Explorer.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      PID:1464
- C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\nssdbm3\CoreShell.exe
  "C:\Users\Admin\AppData\Local\Temp\Botnets PACK\Botnets PACK\Smoke Loader Original Stub\nssdbm3\CoreShell.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    PID:4212
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 972
      4⤵
      Program crash
      PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4212 -ip 4212
1⤵
PID:2364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qyedjr5g.dos.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
ec70c6f4dc443c5ab2b91d64ae04fa8e

SHA1
43eb3b3289782fced204f0b4e3edad2ba1b085b7

SHA256
276f1bfc6256f4c1ddd544d5a556d299ebddcf200a64ee7c9c3edef686df727d

SHA512
6217c232edbcf60ae1337120aa9b51956e06f591c660fd720b02fe8abf01923dd4dca28f69ece88c12c705a4c3a392d0cbb6f4f6c6759306123db141ed05d584

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
ec70c6f4dc443c5ab2b91d64ae04fa8e

SHA1
43eb3b3289782fced204f0b4e3edad2ba1b085b7

SHA256
276f1bfc6256f4c1ddd544d5a556d299ebddcf200a64ee7c9c3edef686df727d

SHA512
6217c232edbcf60ae1337120aa9b51956e06f591c660fd720b02fe8abf01923dd4dca28f69ece88c12c705a4c3a392d0cbb6f4f6c6759306123db141ed05d584

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
ec70c6f4dc443c5ab2b91d64ae04fa8e

SHA1
43eb3b3289782fced204f0b4e3edad2ba1b085b7

SHA256
276f1bfc6256f4c1ddd544d5a556d299ebddcf200a64ee7c9c3edef686df727d

SHA512
6217c232edbcf60ae1337120aa9b51956e06f591c660fd720b02fe8abf01923dd4dca28f69ece88c12c705a4c3a392d0cbb6f4f6c6759306123db141ed05d584

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
memory/676-139-0x00000000054A0000-0x00000000054B0000-memory.dmp

Filesize
64KB

Download
memory/676-138-0x00000000054B0000-0x0000000005506000-memory.dmp

Filesize
344KB

Download
memory/676-137-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/676-136-0x0000000005270000-0x0000000005302000-memory.dmp

Filesize
584KB

Download
memory/676-135-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/676-133-0x0000000000780000-0x00000000007BE000-memory.dmp

Filesize
248KB

Download
memory/676-134-0x0000000005130000-0x00000000051CC000-memory.dmp

Filesize
624KB

Download
memory/1416-150-0x00000000053E0000-0x0000000005A08000-memory.dmp

Filesize
6.2MB

Download
memory/1416-232-0x0000000007880000-0x000000000789A000-memory.dmp

Filesize
104KB

Download
memory/1416-154-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/1416-160-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/1416-152-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/1416-173-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/1416-151-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/1416-149-0x0000000002930000-0x0000000002966000-memory.dmp

Filesize
216KB

Download
memory/1416-233-0x0000000007860000-0x0000000007868000-memory.dmp

Filesize
32KB

Download
memory/1416-153-0x0000000005370000-0x0000000005392000-memory.dmp

Filesize
136KB

Download
memory/1416-231-0x0000000007770000-0x000000000777E000-memory.dmp

Filesize
56KB

Download
memory/1416-230-0x00000000077C0000-0x0000000007856000-memory.dmp

Filesize
600KB

Download
memory/1416-229-0x00000000075B0000-0x00000000075BA000-memory.dmp

Filesize
40KB

Download
memory/1416-228-0x0000000007540000-0x000000000755A000-memory.dmp

Filesize
104KB

Download
memory/1416-227-0x0000000007B80000-0x00000000081FA000-memory.dmp

Filesize
6.5MB

Download
memory/1416-226-0x000000007F450000-0x000000007F460000-memory.dmp

Filesize
64KB

Download
memory/1416-224-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/1416-223-0x00000000067E0000-0x00000000067FE000-memory.dmp

Filesize
120KB

Download
memory/1416-213-0x000000006FD20000-0x000000006FD6C000-memory.dmp

Filesize
304KB

Download
memory/1416-212-0x0000000006800000-0x0000000006832000-memory.dmp

Filesize
200KB

Download
memory/2608-209-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/2608-244-0x0000000004E80000-0x0000000004E90000-memory.dmp

Filesize
64KB

Download
memory/2608-225-0x0000000004E80000-0x0000000004E90000-memory.dmp

Filesize
64KB

Download
memory/3260-243-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/3260-204-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/3260-203-0x0000000000650000-0x0000000000662000-memory.dmp

Filesize
72KB

Download
memory/4212-237-0x0000000000470000-0x00000000008A3000-memory.dmp

Filesize
4.2MB

Download
memory/4212-249-0x00000000009B0000-0x00000000009BA000-memory.dmp

Filesize
40KB

Download
memory/4212-242-0x00000000009B0000-0x00000000009BA000-memory.dmp

Filesize
40KB

Download
memory/4212-240-0x00000000009B0000-0x00000000009BA000-memory.dmp

Filesize
40KB

Download
memory/4212-239-0x0000000000470000-0x00000000008A3000-memory.dmp

Filesize
4.2MB

Download
memory/4828-143-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4828-187-0x0000000006500000-0x0000000006576000-memory.dmp

Filesize
472KB

Download
memory/4828-188-0x00000000064E0000-0x00000000064FE000-memory.dmp

Filesize
120KB

Download
memory/4828-140-0x0000000000960000-0x0000000000974000-memory.dmp

Filesize
80KB

Download
memory/4828-142-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4828-141-0x0000000006920000-0x000000000699E000-memory.dmp

Filesize
504KB

Download
memory/4848-147-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download
memory/4848-236-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download
memory/4848-146-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download
memory/4848-145-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4848-246-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download