smokeloader | 0c0423483302f7f135d822e1262b6a187c735e65fb2372b7d49cd4d8f5b6356b

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2022, 22:19

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General

Target

file.exe
Size

288KB
MD5

832d206dead5aa4cdf20e6efd3048c25
SHA1

a0d17fd5b88be42edccaace0fb641a092afdb067
SHA256

0c0423483302f7f135d822e1262b6a187c735e65fb2372b7d49cd4d8f5b6356b
SHA512

af618c979c410b92e409a575bf82c1675a1be07649298e7ce5c0fcc02f90d82f838b96b4660d26bccc4e4d52c328178f2f0b779e956b5efc3d53b022ce326470
SSDEEP

3072:HYdKY9HuLTC1eqoRfALE4FVwSZEiJNLQnyPT+8U9SkEqwi:LqOLoeqqV4FVw/++nyPS8UIkEq

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral2/memory/2180-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4604-135-0x00000000006C0000-0x00000000006C9000-memory.dmp	family_smokeloader
behavioral2/memory/2180-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/2180-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3708-168-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3708-169-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
5036	cwtjrai
3708	cwtjrai

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4604 set thread context of 2180	4604	file.exe	84
PID 5036 set thread context of 3708	5036	cwtjrai	91

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2180	file.exe
2180	file.exe
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found
2764	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2764	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2180	file.exe
3708	cwtjrai

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found
Token: SeShutdownPrivilege	2764	Process not Found
Token: SeCreatePagefilePrivilege	2764	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 4604 wrote to memory of 2180	4604	file.exe	84
PID 5036 wrote to memory of 3708	5036	cwtjrai	91
PID 5036 wrote to memory of 3708	5036	cwtjrai	91
PID 5036 wrote to memory of 3708	5036	cwtjrai	91
PID 5036 wrote to memory of 3708	5036	cwtjrai	91
PID 5036 wrote to memory of 3708	5036	cwtjrai	91
PID 5036 wrote to memory of 3708	5036	cwtjrai	91

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2180

C:\Users\Admin\AppData\Roaming\cwtjrai
C:\Users\Admin\AppData\Roaming\cwtjrai
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Admin\AppData\Roaming\cwtjrai
  C:\Users\Admin\AppData\Roaming\cwtjrai
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:3708

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\cwtjrai

Filesize
288KB

MD5
832d206dead5aa4cdf20e6efd3048c25

SHA1
a0d17fd5b88be42edccaace0fb641a092afdb067

SHA256
0c0423483302f7f135d822e1262b6a187c735e65fb2372b7d49cd4d8f5b6356b

SHA512
af618c979c410b92e409a575bf82c1675a1be07649298e7ce5c0fcc02f90d82f838b96b4660d26bccc4e4d52c328178f2f0b779e956b5efc3d53b022ce326470

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

Filesize
288KB

MD5
832d206dead5aa4cdf20e6efd3048c25

SHA1
a0d17fd5b88be42edccaace0fb641a092afdb067

SHA256
0c0423483302f7f135d822e1262b6a187c735e65fb2372b7d49cd4d8f5b6356b

SHA512
af618c979c410b92e409a575bf82c1675a1be07649298e7ce5c0fcc02f90d82f838b96b4660d26bccc4e4d52c328178f2f0b779e956b5efc3d53b022ce326470

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

Filesize
288KB

MD5
832d206dead5aa4cdf20e6efd3048c25

SHA1
a0d17fd5b88be42edccaace0fb641a092afdb067

SHA256
0c0423483302f7f135d822e1262b6a187c735e65fb2372b7d49cd4d8f5b6356b

SHA512
af618c979c410b92e409a575bf82c1675a1be07649298e7ce5c0fcc02f90d82f838b96b4660d26bccc4e4d52c328178f2f0b779e956b5efc3d53b022ce326470

Download Submit
memory/2180-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2180-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2180-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2764-173-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-186-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-140-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-141-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-142-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-143-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-144-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-145-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-146-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-147-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-176-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-149-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-150-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-151-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-152-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-153-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-154-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-155-0x00000000029B0000-0x00000000029C0000-memory.dmp

Filesize
64KB

Download
memory/2764-156-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download
memory/2764-157-0x00000000008C0000-0x00000000008D0000-memory.dmp

Filesize
64KB

Download
memory/2764-158-0x00000000008C0000-0x00000000008D0000-memory.dmp

Filesize
64KB

Download
memory/2764-159-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download
memory/2764-160-0x00000000008C0000-0x00000000008D0000-memory.dmp

Filesize
64KB

Download
memory/2764-161-0x00000000008C0000-0x00000000008D0000-memory.dmp

Filesize
64KB

Download
memory/2764-213-0x0000000002400000-0x0000000002410000-memory.dmp

Filesize
64KB

Download
memory/2764-212-0x0000000002400000-0x0000000002410000-memory.dmp

Filesize
64KB

Download
memory/2764-211-0x0000000002400000-0x0000000002410000-memory.dmp

Filesize
64KB

Download
memory/2764-210-0x00000000023E0000-0x00000000023F0000-memory.dmp

Filesize
64KB

Download
memory/2764-209-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-208-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-170-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-171-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-172-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-138-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-177-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-175-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-148-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-139-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-174-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-179-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-180-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-181-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-182-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-183-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-184-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-185-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-178-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-187-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-188-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-189-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-190-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-191-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-192-0x00000000029F0000-0x0000000002A00000-memory.dmp

Filesize
64KB

Download
memory/2764-193-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-194-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-195-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-196-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-197-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-198-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-199-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-200-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-201-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-202-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-203-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-204-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-205-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-206-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/2764-207-0x00000000029A0000-0x00000000029B0000-memory.dmp

Filesize
64KB

Download
memory/3708-169-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3708-168-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4604-135-0x00000000006C0000-0x00000000006C9000-memory.dmp

Filesize
36KB

Download
memory/4604-134-0x0000000000789000-0x000000000079A000-memory.dmp

Filesize
68KB

Download
memory/5036-167-0x00000000005A9000-0x00000000005B9000-memory.dmp

Filesize
64KB

Download