amadey | dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e

General

Target

dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe
Size

1.7MB
MD5

08bae91348c9440068484fef72f39992
SHA1

3625e654160ecdf011e2122061dec596799632f9
SHA256

dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e
SHA512

5925926ef0e101df9b50039823ced2b9e9161d37fdbf2eb86084b026fa4aa45f9ed17ff49183be96c461b76c597e24ad530c17427475a1011e04c606e745f12b
SSDEEP

24576:OpyJ7S9++lQaFkBMUwdE4xxKZxSpYdx6YcFJwV2STVOk9TQyp:OKe/apYqeM7dGFSE9G

Score

10^/10

amadey evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

C2

http://193.233.132.139

Attributes

install_dir
5454e6f062
install_file
explorta.exe
strings_key
c7a869c5ba1d72480093ec207994e2bf
url_paths
/sev56rkm/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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorta.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorta.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorta.exe

Executes dropped EXE 1 IoCs

pid	Process
2688	explorta.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2316-0-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-1-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-2-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-3-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-5-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-6-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-7-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-4-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2316-20-0x0000000000E10000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/2688-24-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-23-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-26-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-28-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-27-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-25-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-21-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2688-22-0x00000000000D0000-0x000000000061A000-memory.dmp	themida
behavioral1/files/0x0007000000014183-19.dat	themida
behavioral1/memory/2688-30-0x00000000000D0000-0x000000000061A000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorta.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorta.job	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.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

pid	Process
2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2688	2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe	28
PID 2316 wrote to memory of 2688	2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe	28
PID 2316 wrote to memory of 2688	2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe	28
PID 2316 wrote to memory of 2688	2316	dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe	28

C:\Users\Admin\AppData\Local\Temp\dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.exe
"C:\Users\Admin\AppData\Local\Temp\dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e.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:2316
- C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe
  "C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.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:2688

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\5454e6f062\explorta.exe

Filesize
1.7MB

MD5
08bae91348c9440068484fef72f39992

SHA1
3625e654160ecdf011e2122061dec596799632f9

SHA256
dc922ecb3a3c95b7338b322a07227dfd74c461ccd1968d5f3691a495be3ac40e

SHA512
5925926ef0e101df9b50039823ced2b9e9161d37fdbf2eb86084b026fa4aa45f9ed17ff49183be96c461b76c597e24ad530c17427475a1011e04c606e745f12b

Download Submit
memory/2316-1-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-2-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-3-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-5-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-6-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-7-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-4-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-9-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2316-20-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-0-0x0000000000E10000-0x000000000135A000-memory.dmp

Filesize
5.3MB

Download
memory/2316-18-0x0000000004D50000-0x000000000529A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-24-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-28-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-27-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-25-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-21-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-22-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-26-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-23-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download
memory/2688-30-0x00000000000D0000-0x000000000061A000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads