amadey | 68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac

General

Target

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Size

1.5MB
MD5

a9caef7db4a30397e409d2adcfab9038
SHA1

2bff200a21f36ab7426679db954c351a5c934d34
SHA256

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac
SHA512

37d626552df1ead838bf76a1472538d061947232a75eb014c780c2151b637d7ccf61027b0d8e117a18dd2411a74165bc4851e03be16d44aba790fe3bac6d4d3f
SSDEEP

24576:tvDqbiBdtLHWsK+kfDU7cWDsHHhpttJmvQJZOqSDNwVwjWjsKwfAQGewp:FDPJLHGPDUY/nNtSQeDNMjCAX9

Score

10^/10

amadey 18befc evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

Botnet

18befc

C2

http://5.42.96.141

Attributes

install_dir
908f070dff
install_file
explorku.exe
strings_key
b25a9385246248a95c600f9a061438e1
url_paths
/go34ko8/index.php

rc4.plain

Signatures

Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
trojan amadey

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe

Executes dropped EXE 1 IoCs

Processes:

explorku.exe

pid process

2276 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

pid process

2268 68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

pid	process
2276	explorku.exe

pid	process
2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2268-0-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-2-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-1-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-3-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-7-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-6-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-5-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2268-4-0x0000000001050000-0x000000000152C000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2276-23-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-27-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-25-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-24-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-26-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-22-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-20-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2268-19-0x0000000001050000-0x000000000152C000-memory.dmp	themida
behavioral1/memory/2276-21-0x0000000000100000-0x00000000005DC000-memory.dmp	themida
behavioral1/memory/2276-29-0x0000000000100000-0x00000000005DC000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

pid process

2268 68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

pid	process
2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe

description	pid	process	target process
PID 2268 wrote to memory of 2276	2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe	explorku.exe
PID 2268 wrote to memory of 2276	2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe	explorku.exe
PID 2268 wrote to memory of 2276	2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe	explorku.exe
PID 2268 wrote to memory of 2276	2268	68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe
"C:\Users\Admin\AppData\Local\Temp\68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
  "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

Filesize
1.5MB

MD5
a9caef7db4a30397e409d2adcfab9038

SHA1
2bff200a21f36ab7426679db954c351a5c934d34

SHA256
68a58d2e7921315838e36ba04ff25bc88661851403e4ddbf9337c9cbdf1fb5ac

SHA512
37d626552df1ead838bf76a1472538d061947232a75eb014c780c2151b637d7ccf61027b0d8e117a18dd2411a74165bc4851e03be16d44aba790fe3bac6d4d3f

Download Submit
memory/2268-19-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-2-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-1-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-3-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-7-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-6-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-5-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-4-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2268-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2268-0-0x0000000001050000-0x000000000152C000-memory.dmp

Filesize
4.9MB

Download
memory/2276-23-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-25-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-24-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-26-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-22-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-20-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-27-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-21-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download
memory/2276-29-0x0000000000100000-0x00000000005DC000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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