smokeloader | 086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985

General

Target

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
Size

298KB
MD5

afc1de57455861ff97bf20c27cfaba6c
SHA1

00bd80516cbf5a309b48730abc76eedd9c5c688f
SHA256

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985
SHA512

d2651e79444401b4a04f7169d6d782eea042273eacca0e95dd332b2562d2789bda2dabda11c37d18815013ea0d024271f1ffdbe74b74006d5af863b82f1673ce
SSDEEP

3072:Aqb6bEcjNLqKRmaVrAndcjlYJZnQ6jJC9GS6AEn11uQjiMTE5wY3ta5hN:1vcjNLqJaVYeCjJoEkE11uQj9EaL

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/5040-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4932-135-0x0000000002200000-0x0000000002209000-memory.dmp	family_smokeloader
behavioral1/memory/5040-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/5040-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2664-144-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2664-145-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 2 IoCs

Processes:

caucuvwcaucuvw

pid process

1840 caucuvw
2664 caucuvw

pid	process
1840	caucuvw
2664	caucuvw

Suspicious use of SetThreadContext 2 IoCs

Processes:

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.execaucuvw

description	pid	process	target process
PID 4932 set thread context of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 1840 set thread context of 2664	1840	caucuvw	caucuvw

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

Processes:

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.execaucuvw

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	caucuvw
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	caucuvw
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	caucuvw
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe

pid	process
5040	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
5040	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3076
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.execaucuvw

pid process

5040 086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
2664 caucuvw
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 3076
Token: SeCreatePagefilePrivilege 3076

pid	process
3076

description	pid	process
Token: SeShutdownPrivilege	3076
Token: SeCreatePagefilePrivilege	3076

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.execaucuvw

description	pid	process	target process
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 4932 wrote to memory of 5040	4932	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe	086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw
PID 1840 wrote to memory of 2664	1840	caucuvw	caucuvw

C:\Users\Admin\AppData\Local\Temp\086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
"C:\Users\Admin\AppData\Local\Temp\086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932

C:\Users\Admin\AppData\Local\Temp\086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe
"C:\Users\Admin\AppData\Local\Temp\086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:5040

C:\Users\Admin\AppData\Roaming\caucuvw
C:\Users\Admin\AppData\Roaming\caucuvw
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1840

C:\Users\Admin\AppData\Roaming\caucuvw
C:\Users\Admin\AppData\Roaming\caucuvw
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2664

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\caucuvw
Filesize
298KB

MD5
afc1de57455861ff97bf20c27cfaba6c

SHA1
00bd80516cbf5a309b48730abc76eedd9c5c688f

SHA256
086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985

SHA512
d2651e79444401b4a04f7169d6d782eea042273eacca0e95dd332b2562d2789bda2dabda11c37d18815013ea0d024271f1ffdbe74b74006d5af863b82f1673ce

Download Submit
C:\Users\Admin\AppData\Roaming\caucuvw
Filesize
298KB

MD5
afc1de57455861ff97bf20c27cfaba6c

SHA1
00bd80516cbf5a309b48730abc76eedd9c5c688f

SHA256
086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985

SHA512
d2651e79444401b4a04f7169d6d782eea042273eacca0e95dd332b2562d2789bda2dabda11c37d18815013ea0d024271f1ffdbe74b74006d5af863b82f1673ce

Download Submit
C:\Users\Admin\AppData\Roaming\caucuvw
Filesize
298KB

MD5
afc1de57455861ff97bf20c27cfaba6c

SHA1
00bd80516cbf5a309b48730abc76eedd9c5c688f

SHA256
086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985

SHA512
d2651e79444401b4a04f7169d6d782eea042273eacca0e95dd332b2562d2789bda2dabda11c37d18815013ea0d024271f1ffdbe74b74006d5af863b82f1673ce

Download Submit
memory/1840-143-0x000000000072E000-0x0000000000743000-memory.dmp

Filesize
84KB

Download
memory/2664-140-0x0000000000000000-mapping.dmp

Download
memory/2664-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-145-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4932-135-0x0000000002200000-0x0000000002209000-memory.dmp

Filesize
36KB

Download
memory/4932-134-0x000000000075E000-0x0000000000773000-memory.dmp

Filesize
84KB

Download
memory/5040-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads