smokeloader | f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96

Analysis

max time kernel
150s
max time network
67s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
21/09/2022, 06:27

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General

Target

f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
Size

148KB
MD5

32d71a468281fa6a54aba0344a65bb5b
SHA1

f8a61d1cb293ba8a438c1d74afb3cabbe7f49b68
SHA256

f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96
SHA512

8cb2a11b3a00ea20a701323acc3cb5d1d01b42f27c12c13701454ceea978052dedf60d2602b4b5a6578940914d6d3161bab55ed6740acd8cf70a5e4315042172
SSDEEP

3072:Fyxr5cpuNJcCxh9rqcZ0OHzZBgT8iL2In:rAJcCNrqAoTHL

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

resource	yara_rule
behavioral1/memory/4728-150-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4728-151-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/4728-163-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4728-182-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4828-214-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/1176-222-0x00000000001D0000-0x00000000001D9000-memory.dmp	family_smokeloader
behavioral1/memory/4828-246-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4828-247-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
1176	scwbhia
4828	scwbhia

Deletes itself 1 IoCs

pid	Process
3000	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 1176 set thread context of 4828	1176	scwbhia	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	scwbhia
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	scwbhia
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	scwbhia
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4728	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
4728	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
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3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found
3000	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4728	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
4828	scwbhia

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3000	Process not Found
Token: SeCreatePagefilePrivilege	3000	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 2660 wrote to memory of 4728	2660	f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe	66
PID 1176 wrote to memory of 4828	1176	scwbhia	68
PID 1176 wrote to memory of 4828	1176	scwbhia	68
PID 1176 wrote to memory of 4828	1176	scwbhia	68
PID 1176 wrote to memory of 4828	1176	scwbhia	68
PID 1176 wrote to memory of 4828	1176	scwbhia	68
PID 1176 wrote to memory of 4828	1176	scwbhia	68

C:\Users\Admin\AppData\Local\Temp\f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
"C:\Users\Admin\AppData\Local\Temp\f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Users\Admin\AppData\Local\Temp\f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe
  "C:\Users\Admin\AppData\Local\Temp\f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4728

C:\Users\Admin\AppData\Roaming\scwbhia
C:\Users\Admin\AppData\Roaming\scwbhia
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Roaming\scwbhia
  C:\Users\Admin\AppData\Roaming\scwbhia
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:4828

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\scwbhia

Filesize
148KB

MD5
32d71a468281fa6a54aba0344a65bb5b

SHA1
f8a61d1cb293ba8a438c1d74afb3cabbe7f49b68

SHA256
f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96

SHA512
8cb2a11b3a00ea20a701323acc3cb5d1d01b42f27c12c13701454ceea978052dedf60d2602b4b5a6578940914d6d3161bab55ed6740acd8cf70a5e4315042172

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

Filesize
148KB

MD5
32d71a468281fa6a54aba0344a65bb5b

SHA1
f8a61d1cb293ba8a438c1d74afb3cabbe7f49b68

SHA256
f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96

SHA512
8cb2a11b3a00ea20a701323acc3cb5d1d01b42f27c12c13701454ceea978052dedf60d2602b4b5a6578940914d6d3161bab55ed6740acd8cf70a5e4315042172

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

Filesize
148KB

MD5
32d71a468281fa6a54aba0344a65bb5b

SHA1
f8a61d1cb293ba8a438c1d74afb3cabbe7f49b68

SHA256
f55eae9ac8b79ff673e488d5eb5b462077007e0eabdc875a2c34afc3f1d0fc96

SHA512
8cb2a11b3a00ea20a701323acc3cb5d1d01b42f27c12c13701454ceea978052dedf60d2602b4b5a6578940914d6d3161bab55ed6740acd8cf70a5e4315042172

Download Submit
memory/1176-188-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-184-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-185-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-186-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-187-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-189-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-190-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/1176-222-0x00000000001D0000-0x00000000001D9000-memory.dmp

Filesize
36KB

Download
memory/2660-136-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-142-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-128-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-129-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-130-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-131-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-132-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-133-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-134-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-126-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-137-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-138-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-139-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-140-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-141-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-127-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-143-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-145-0x00000000005D0000-0x000000000067E000-memory.dmp

Filesize
696KB

Download
memory/2660-144-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-146-0x00000000005D0000-0x000000000067E000-memory.dmp

Filesize
696KB

Download
memory/2660-147-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-148-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-149-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-125-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-124-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-123-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-122-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-121-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/2660-120-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-155-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-173-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-158-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-159-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-160-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-162-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-161-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-164-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-163-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4728-165-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-166-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-167-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-168-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-169-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-170-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-171-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-172-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-157-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-174-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-175-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-176-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-177-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-154-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-156-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-153-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-178-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-179-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-180-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-181-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4728-182-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4728-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4728-152-0x00000000773D0000-0x000000007755E000-memory.dmp

Filesize
1.6MB

Download
memory/4828-246-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4828-247-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download