smokeloader | be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005

General

Target

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
Size

241KB
MD5

1d71d802fb38181c29a9844716b11ab2
SHA1

9039f711a6d9f709329a80176a2dd4db023e9188
SHA256

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005
SHA512

daa43a543385efac11534c9646859373667c954448eb3ac9f0ed533777c3218c78a9e8c7710d38cdfb6898faf358a3db19212f2ff9aff002d3f625e9ab348062
SSDEEP

3072:8bKK0udcEAuWCFKmWi6SGF5HsFbzkGCH:uxCERWThJstF

Score

10^/10

smokeloader pub1 aspackv2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

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

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\zuYZEq.exe	aspack_v212_v242

Executes dropped EXE 1 IoCs

Processes:

zuYZEq.exe

pid process

3036 zuYZEq.exe

pid	process
3036	zuYZEq.exe

Loads dropped DLL 2 IoCs

Processes:

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe

pid	process
3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe

description	pid	process	target process
PID 3024 set thread context of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe

Drops file in Program Files directory 64 IoCs

Processes:

zuYZEq.exe

description	ioc	process
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmid.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CLVIEW.EXE	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrmstp.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jp2launcher.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCICONS.EXE	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaw.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	zuYZEq.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jrunscript.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\MSOHTMED.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java-rmi.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\klist.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OIS.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javacpl.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmc.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstat.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ktab.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Icons\SC_Reader.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\apt.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\klist.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jre7\bin\orbd.exe	zuYZEq.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jabswitch.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ktab.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	zuYZEq.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\xjc.exe	zuYZEq.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exezuYZEq.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zuYZEq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exezuYZEq.exe

description	pid	process	target process
PID 3024 wrote to memory of 3036	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	zuYZEq.exe
PID 3024 wrote to memory of 3036	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	zuYZEq.exe
PID 3024 wrote to memory of 3036	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	zuYZEq.exe
PID 3024 wrote to memory of 3036	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	zuYZEq.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3024 wrote to memory of 1064	3024	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe	be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
PID 3036 wrote to memory of 2904	3036	zuYZEq.exe	cmd.exe
PID 3036 wrote to memory of 2904	3036	zuYZEq.exe	cmd.exe
PID 3036 wrote to memory of 2904	3036	zuYZEq.exe	cmd.exe
PID 3036 wrote to memory of 2904	3036	zuYZEq.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
"C:\Users\Admin\AppData\Local\Temp\be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\zuYZEq.exe
C:\Users\Admin\AppData\Local\Temp\zuYZEq.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\51ca270c.bat" "
3⤵
- System Location Discovery: System Language Discovery
PID:2904

C:\Users\Admin\AppData\Local\Temp\be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe
"C:\Users\Admin\AppData\Local\Temp\be1c79275d836696a00b258d15a8b337a8c9beb8198a5bd3d5aaf64d660c8005.exe"
2⤵
PID:1064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\1VX38S3F\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\101F5808.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\51ca270c.bat

Filesize
187B

MD5
690811d4406406cb9ab8e57619756450

SHA1
99d6f64ad4ac40375cb7dc7a1206b4bc88af4535

SHA256
db71197da3d4135258c2a75541a5260d6eda0d2f63ac490aea2780d35bc8b640

SHA512
4cb68015ade54061ec5d19f829cc4f07b4b04ca58dcdc829e8bbdb51ce695379c5319f14d432887ef0897a79a8489425250c21dc11d1feb0a8d9b3d61a5a16e7

Download Submit
\Users\Admin\AppData\Local\Temp\zuYZEq.exe

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/1064-18-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1064-23-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1064-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-24-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/3024-22-0x0000000000296000-0x000000000029F000-memory.dmp

Filesize
36KB

Download
memory/3024-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3024-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3024-8-0x0000000000AB0000-0x0000000000AB9000-memory.dmp

Filesize
36KB

Download
memory/3024-9-0x0000000000AB0000-0x0000000000AB9000-memory.dmp

Filesize
36KB

Download
memory/3036-12-0x0000000000AB0000-0x0000000000AB9000-memory.dmp

Filesize
36KB

Download
memory/3036-46-0x0000000000AB0000-0x0000000000AB9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads