smokeloader | b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a

Resubmissions

19-02-2023 21:04

230219-zwxedaga7w 10

19-02-2023 18:51

230219-xhma5sfg4z 10

Analysis

max time kernel
301s
max time network
295s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-02-2023 21:04

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Report Analysis Logs

General

Target

b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
Size

227KB
MD5

8e9b5572a7470a015a4bd2b91fd78ab0
SHA1

4e4d5406696a6d00bcf54633aba6f2f68c80ad72
SHA256

b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a
SHA512

c7dc66b40a791dd83c3beb44adb010ba7238bc9fc04eeb0c3e172c905a4ef04530dc1447a08d5046b8afb19c4e1ede6aea928edea8f7cfd54dec8ce9b50197af
SSDEEP

3072:sB/aYaPSLD1P/m0a0k0IiqCRfsB5xJ7zg6qeL+VqYsPAl/Mvcf1iBh2s:6LaPSLFm0lJqCRfgdgRjwnPpENiH2

Score

10^/10

smokeloader backdoor spyware trojan

Malware Config

Signatures

Detects Smokeloader packer 1 IoCs

resource	yara_rule
behavioral2/memory/2732-133-0x0000000000730000-0x0000000000739000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Downloads MZ/PE file

Executes dropped EXE 3 IoCs

pid	Process
816	177F.exe
552	1C43.exe
3544	22BC.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3544 set thread context of 4436	3544	22BC.exe	85

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2732	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
2732	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	Process not Found

Suspicious behavior: MapViewOfSection 19 IoCs

pid	Process
2732	b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found
Token: SeDebugPrivilege	4436	AppLaunch.exe
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found
Token: SeShutdownPrivilege	2688	Process not Found
Token: SeCreatePagefilePrivilege	2688	Process not Found

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2688	Process not Found
2688	Process not Found
2688	Process not Found

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found
2688	Process not Found

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 816	2688	Process not Found	80
PID 2688 wrote to memory of 816	2688	Process not Found	80
PID 2688 wrote to memory of 552	2688	Process not Found	81
PID 2688 wrote to memory of 552	2688	Process not Found	81
PID 2688 wrote to memory of 3544	2688	Process not Found	82
PID 2688 wrote to memory of 3544	2688	Process not Found	82
PID 2688 wrote to memory of 3544	2688	Process not Found	82
PID 2688 wrote to memory of 4832	2688	Process not Found	84
PID 2688 wrote to memory of 4832	2688	Process not Found	84
PID 2688 wrote to memory of 4832	2688	Process not Found	84
PID 2688 wrote to memory of 4832	2688	Process not Found	84
PID 3544 wrote to memory of 4436	3544	22BC.exe	85
PID 3544 wrote to memory of 4436	3544	22BC.exe	85
PID 3544 wrote to memory of 4436	3544	22BC.exe	85
PID 3544 wrote to memory of 4436	3544	22BC.exe	85
PID 3544 wrote to memory of 4436	3544	22BC.exe	85
PID 2688 wrote to memory of 4192	2688	Process not Found	86
PID 2688 wrote to memory of 4192	2688	Process not Found	86
PID 2688 wrote to memory of 4192	2688	Process not Found	86
PID 2688 wrote to memory of 644	2688	Process not Found	88
PID 2688 wrote to memory of 644	2688	Process not Found	88
PID 2688 wrote to memory of 644	2688	Process not Found	88
PID 2688 wrote to memory of 644	2688	Process not Found	88
PID 2688 wrote to memory of 2492	2688	Process not Found	90
PID 2688 wrote to memory of 2492	2688	Process not Found	90
PID 2688 wrote to memory of 2492	2688	Process not Found	90
PID 2688 wrote to memory of 2508	2688	Process not Found	92
PID 2688 wrote to memory of 2508	2688	Process not Found	92
PID 2688 wrote to memory of 2508	2688	Process not Found	92
PID 2688 wrote to memory of 2508	2688	Process not Found	92
PID 2688 wrote to memory of 4400	2688	Process not Found	95
PID 2688 wrote to memory of 4400	2688	Process not Found	95
PID 2688 wrote to memory of 4400	2688	Process not Found	95
PID 2688 wrote to memory of 4400	2688	Process not Found	95
PID 2688 wrote to memory of 2984	2688	Process not Found	97
PID 2688 wrote to memory of 2984	2688	Process not Found	97
PID 2688 wrote to memory of 2984	2688	Process not Found	97
PID 2688 wrote to memory of 2984	2688	Process not Found	97
PID 2688 wrote to memory of 3604	2688	Process not Found	98
PID 2688 wrote to memory of 3604	2688	Process not Found	98
PID 2688 wrote to memory of 3604	2688	Process not Found	98
PID 2688 wrote to memory of 2452	2688	Process not Found	99
PID 2688 wrote to memory of 2452	2688	Process not Found	99
PID 2688 wrote to memory of 2452	2688	Process not Found	99
PID 2688 wrote to memory of 2452	2688	Process not Found	99

C:\Users\Admin\AppData\Local\Temp\b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe
"C:\Users\Admin\AppData\Local\Temp\b45d683efd7ec95afd23317e2c0e9ca178b16c0d9f4f3c2363035dd10e24698a.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2732

C:\Users\Admin\AppData\Local\Temp\177F.exe
C:\Users\Admin\AppData\Local\Temp\177F.exe
1⤵
- Executes dropped EXE
PID:816

C:\Users\Admin\AppData\Local\Temp\1C43.exe
C:\Users\Admin\AppData\Local\Temp\1C43.exe
1⤵
- Executes dropped EXE
PID:552

C:\Users\Admin\AppData\Local\Temp\22BC.exe
C:\Users\Admin\AppData\Local\Temp\22BC.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4436

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4832

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:4192

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:644

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2492

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2508

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4400

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2984

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3604

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2452

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\177F.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\177F.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\1C43.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\1C43.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\22BC.exe

Filesize
341KB

MD5
c20d2ff0ab8d3d3e704267ba84209d18

SHA1
7a5e7f65b8b90c0206ff4bad6d00c9c12e991703

SHA256
1a9d1912f5180eaef3e81cb1d9d2abd61c7ff6b9c952c55a8390adc10a7c4777

SHA512
1dfc0f4c1ddf12deca8515044ec24161f0cd2e4dfdd5139ddd1ab390c51d3cb80f2b0c766fd353f0622fc090eb1a3de1f8727ac0ea713bf70b9ccd0c2d4b1724

Download Submit
C:\Users\Admin\AppData\Local\Temp\22BC.exe

Filesize
341KB

MD5
c20d2ff0ab8d3d3e704267ba84209d18

SHA1
7a5e7f65b8b90c0206ff4bad6d00c9c12e991703

SHA256
1a9d1912f5180eaef3e81cb1d9d2abd61c7ff6b9c952c55a8390adc10a7c4777

SHA512
1dfc0f4c1ddf12deca8515044ec24161f0cd2e4dfdd5139ddd1ab390c51d3cb80f2b0c766fd353f0622fc090eb1a3de1f8727ac0ea713bf70b9ccd0c2d4b1724

Download Submit
memory/552-144-0x00007FFF38040000-0x00007FFF38B01000-memory.dmp

Filesize
10.8MB

Download
memory/644-165-0x0000000000F60000-0x0000000000F69000-memory.dmp

Filesize
36KB

Download
memory/644-164-0x0000000000F70000-0x0000000000F75000-memory.dmp

Filesize
20KB

Download
memory/644-195-0x0000000000F70000-0x0000000000F75000-memory.dmp

Filesize
20KB

Download
memory/816-139-0x0000000000F10000-0x0000000000F18000-memory.dmp

Filesize
32KB

Download
memory/816-140-0x00007FFF38040000-0x00007FFF38B01000-memory.dmp

Filesize
10.8MB

Download
memory/2452-191-0x00000000001A0000-0x00000000001A8000-memory.dmp

Filesize
32KB

Download
memory/2452-199-0x00000000001A0000-0x00000000001A8000-memory.dmp

Filesize
32KB

Download
memory/2452-192-0x0000000000190000-0x000000000019B000-memory.dmp

Filesize
44KB

Download
memory/2492-169-0x0000000000390000-0x000000000039C000-memory.dmp

Filesize
48KB

Download
memory/2492-168-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2508-196-0x0000000000190000-0x00000000001B2000-memory.dmp

Filesize
136KB

Download
memory/2508-173-0x0000000000160000-0x0000000000187000-memory.dmp

Filesize
156KB

Download
memory/2508-172-0x0000000000190000-0x00000000001B2000-memory.dmp

Filesize
136KB

Download
memory/2732-132-0x000000000077C000-0x0000000000791000-memory.dmp

Filesize
84KB

Download
memory/2732-135-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2732-134-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2732-133-0x0000000000730000-0x0000000000739000-memory.dmp

Filesize
36KB

Download
memory/2984-184-0x0000000000550000-0x000000000055B000-memory.dmp

Filesize
44KB

Download
memory/2984-198-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2984-183-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3604-189-0x00000000010A0000-0x00000000010AD000-memory.dmp

Filesize
52KB

Download
memory/3604-188-0x00000000010B0000-0x00000000010B7000-memory.dmp

Filesize
28KB

Download
memory/4192-158-0x0000000000EC0000-0x0000000000EC9000-memory.dmp

Filesize
36KB

Download
memory/4192-194-0x0000000000EC0000-0x0000000000EC9000-memory.dmp

Filesize
36KB

Download
memory/4192-159-0x0000000000EB0000-0x0000000000EBF000-memory.dmp

Filesize
60KB

Download
memory/4400-197-0x0000000000380000-0x0000000000385000-memory.dmp

Filesize
20KB

Download
memory/4400-178-0x0000000000380000-0x0000000000385000-memory.dmp

Filesize
20KB

Download
memory/4400-180-0x0000000000370000-0x0000000000379000-memory.dmp

Filesize
36KB

Download
memory/4436-187-0x00000000080E0000-0x000000000860C000-memory.dmp

Filesize
5.2MB

Download
memory/4436-166-0x0000000005500000-0x000000000553C000-memory.dmp

Filesize
240KB

Download
memory/4436-163-0x00000000055D0000-0x00000000056DA000-memory.dmp

Filesize
1.0MB

Download
memory/4436-185-0x00000000079E0000-0x0000000007BA2000-memory.dmp

Filesize
1.8MB

Download
memory/4436-181-0x00000000064E0000-0x00000000064FE000-memory.dmp

Filesize
120KB

Download
memory/4436-175-0x0000000006A40000-0x0000000006FE4000-memory.dmp

Filesize
5.6MB

Download
memory/4436-171-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/4436-160-0x0000000005A30000-0x0000000006048000-memory.dmp

Filesize
6.1MB

Download
memory/4436-161-0x00000000054A0000-0x00000000054B2000-memory.dmp

Filesize
72KB

Download
memory/4436-174-0x00000000063F0000-0x0000000006482000-memory.dmp

Filesize
584KB

Download
memory/4436-177-0x0000000006490000-0x00000000064E0000-memory.dmp

Filesize
320KB

Download
memory/4436-179-0x0000000006560000-0x00000000065D6000-memory.dmp

Filesize
472KB

Download
memory/4436-150-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4832-193-0x0000000000F70000-0x0000000000F77000-memory.dmp

Filesize
28KB

Download
memory/4832-156-0x0000000000F70000-0x0000000000F77000-memory.dmp

Filesize
28KB

Download
memory/4832-157-0x0000000000F60000-0x0000000000F6B000-memory.dmp

Filesize
44KB

Download