bdaejec | d3eac47e72da4cb6b2a10a088f84616401f6ccb68d9cbaa38f857a9f13adef62

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 04:42

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General

Target

2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe
Size

215KB
MD5

9a5f791f20c3197d9eebf4d59b9be4e7
SHA1

7d233c80c590b230be208e91f7248dfeaa8a82d5
SHA256

d3eac47e72da4cb6b2a10a088f84616401f6ccb68d9cbaa38f857a9f13adef62
SHA512

f48ca46356d990a0ffff22c1aa902459f99d84eeb7a988eb3626590a256e5008460435dc796f8ba8cfe6b62f8b7c0b747fdb4b815354c8c3d1cb05d0497f8e7a
SSDEEP

3072:R666SmGgfYMSLpt690O4EHIsxeqvrvuSUdybQHoAw3MVDdVY3KRGCH:R2SSI60OhHLjv1nt3KE

Score

10^/10

bdaejec aspackv2 backdoor discovery

Malware Config

Extracted

Family

bdaejec

ddos.dnsnb8.net

Signatures

Bdaejec
Bdaejec is a backdoor written in C++.
backdoor bdaejec
Bdaejec family
bdaejec

Detects Bdaejec Backdoor. 2 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral1/memory/2376-11-0x0000000000A10000-0x0000000000A19000-memory.dmp	family_bdaejec_backdoor
behavioral1/memory/2376-14-0x0000000000A10000-0x0000000000A19000-memory.dmp	family_bdaejec_backdoor

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000d0000000131aa-8.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2376	pEmDRz.exe

Loads dropped DLL 2 IoCs

pid	Process
2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe
2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre7\bin\pack200.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IEContentService.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	pEmDRz.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javacpl.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Icons\SC_Reader.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\keytool.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateComRegisterShell64.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateSetup.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\klist.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jarsigner.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE	pEmDRz.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jrunscript.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\idlj.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jdb.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\Mahjong.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\policytool.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{26793F86-7A02-4BBD-B5DA-4AA3D83AA174}\chrome_installer.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jabswitch.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jconsole.exe	pEmDRz.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	pEmDRz.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	pEmDRz.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pEmDRz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2376	2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe	32
PID 2520 wrote to memory of 2376	2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe	32
PID 2520 wrote to memory of 2376	2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe	32
PID 2520 wrote to memory of 2376	2520	2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe	32
PID 2376 wrote to memory of 2844	2376	pEmDRz.exe	36
PID 2376 wrote to memory of 2844	2376	pEmDRz.exe	36
PID 2376 wrote to memory of 2844	2376	pEmDRz.exe	36
PID 2376 wrote to memory of 2844	2376	pEmDRz.exe	36

C:\Users\Admin\AppData\Local\Temp\2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\pEmDRz.exe
  C:\Users\Admin\AppData\Local\Temp\pEmDRz.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\78a74475.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\78a74475.bat

Filesize
187B

MD5
784b25b6c371e56a89921df1e0366608

SHA1
51a5a36be77b8fcdbd8a90abb199ea6486681dfd

SHA256
6778c8e883735a06865688ff86cb166a6d7630ffb9cfff4f05ade4d694ad2def

SHA512
ff63f84257ee4c7a9d27bc7a1d34a3e8cd95690cbfe5ed991b937fd07e36bbc1b1c330349ae848b7c5df92f0dd6c61fe0d65806d08c5043c6d6b7cdbc7d102f0

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2376-11-0x0000000000A10000-0x0000000000A19000-memory.dmp

Filesize
36KB

Download
memory/2376-14-0x0000000000A10000-0x0000000000A19000-memory.dmp

Filesize
36KB

Download
memory/2520-0-0x00000000001F0000-0x000000000022C000-memory.dmp

Filesize
240KB

Download
memory/2520-9-0x00000000001F0000-0x000000000022C000-memory.dmp

Filesize
240KB

Download