cryptbot | bc8a51ae8941791b3322fcec60bd7d450c80ad7d5625084f9e59dd580883d609

Analysis

max time kernel
149s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03/03/2023, 18:26

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General

Target

af92a902d7a44c35209751a6a4ea76b7.exe
Size

795KB
MD5

af92a902d7a44c35209751a6a4ea76b7
SHA1

84df082d9587ca24dd30da7b252cb7a37006c42a
SHA256

bc8a51ae8941791b3322fcec60bd7d450c80ad7d5625084f9e59dd580883d609
SHA512

8358c3a413007452052b7158c3f92f51cf305828c1818afa2f3f124b2113dbbbff34b79343608f7860bde75ae392a978f1d559b478858cf0d3738a4b97e2c4d0
SSDEEP

24576:v1Mxt5hLFiFMw57enjaEpWCb54PRvzQsWsWZhq8VLFH:29howkCUQDqat

Score

10^/10

cryptbot discovery evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

http://xjupom52.top/gate.php

Attributes

payload_url
http://rymhdi07.top/zither.dat

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot

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__	zither.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	DpEditor.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\SystemBiosVersion	zither.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	zither.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DpEditor.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DpEditor.exe

Deletes itself 1 IoCs

pid	Process
1988	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
1204	zither.exe
1824	DpEditor.exe

Loads dropped DLL 2 IoCs

pid	Process
1496	cmd.exe
1204	zither.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 18 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/files/0x0006000000014984-140.dat	themida
behavioral1/files/0x0006000000014984-139.dat	themida
behavioral1/files/0x0006000000014984-141.dat	themida
behavioral1/memory/1204-142-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/memory/1204-143-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/memory/1204-144-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/memory/1204-145-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/memory/1204-147-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/memory/1204-148-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/files/0x0006000000014adf-150.dat	themida
behavioral1/memory/1204-153-0x00000000009F0000-0x00000000010D8000-memory.dmp	themida
behavioral1/files/0x0006000000014adf-154.dat	themida
behavioral1/memory/1824-155-0x0000000001210000-0x00000000018F8000-memory.dmp	themida
behavioral1/memory/1824-157-0x0000000001210000-0x00000000018F8000-memory.dmp	themida
behavioral1/memory/1824-159-0x0000000001210000-0x00000000018F8000-memory.dmp	themida
behavioral1/memory/1824-158-0x0000000001210000-0x00000000018F8000-memory.dmp	themida
behavioral1/memory/1824-160-0x0000000001210000-0x00000000018F8000-memory.dmp	themida
behavioral1/memory/1824-161-0x0000000001210000-0x00000000018F8000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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	zither.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DpEditor.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	af92a902d7a44c35209751a6a4ea76b7.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	af92a902d7a44c35209751a6a4ea76b7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1204	zither.exe
1824	DpEditor.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 308 set thread context of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	af92a902d7a44c35209751a6a4ea76b7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	af92a902d7a44c35209751a6a4ea76b7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	af92a902d7a44c35209751a6a4ea76b7.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
328	timeout.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1824	DpEditor.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1524	af92a902d7a44c35209751a6a4ea76b7.exe
1204	zither.exe
1824	DpEditor.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 308 wrote to memory of 1524	308	af92a902d7a44c35209751a6a4ea76b7.exe	27
PID 1524 wrote to memory of 1496	1524	af92a902d7a44c35209751a6a4ea76b7.exe	29
PID 1524 wrote to memory of 1496	1524	af92a902d7a44c35209751a6a4ea76b7.exe	29
PID 1524 wrote to memory of 1496	1524	af92a902d7a44c35209751a6a4ea76b7.exe	29
PID 1524 wrote to memory of 1496	1524	af92a902d7a44c35209751a6a4ea76b7.exe	29
PID 1524 wrote to memory of 1988	1524	af92a902d7a44c35209751a6a4ea76b7.exe	31
PID 1524 wrote to memory of 1988	1524	af92a902d7a44c35209751a6a4ea76b7.exe	31
PID 1524 wrote to memory of 1988	1524	af92a902d7a44c35209751a6a4ea76b7.exe	31
PID 1524 wrote to memory of 1988	1524	af92a902d7a44c35209751a6a4ea76b7.exe	31
PID 1988 wrote to memory of 328	1988	cmd.exe	34
PID 1988 wrote to memory of 328	1988	cmd.exe	34
PID 1988 wrote to memory of 328	1988	cmd.exe	34
PID 1988 wrote to memory of 328	1988	cmd.exe	34
PID 1496 wrote to memory of 1204	1496	cmd.exe	33
PID 1496 wrote to memory of 1204	1496	cmd.exe	33
PID 1496 wrote to memory of 1204	1496	cmd.exe	33
PID 1496 wrote to memory of 1204	1496	cmd.exe	33
PID 1204 wrote to memory of 1824	1204	zither.exe	35
PID 1204 wrote to memory of 1824	1204	zither.exe	35
PID 1204 wrote to memory of 1824	1204	zither.exe	35
PID 1204 wrote to memory of 1824	1204	zither.exe	35

C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe
"C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:308
- C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe
  "C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe"
  2⤵
  - Maps connected drives based on registry
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1524
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1496
  - - C:\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe
      C:\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Loads dropped DLL
      Checks whether UAC is enabled
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1204
    - - C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
        
        "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
        5⤵
        Identifies VirtualBox via ACPI registry values (likely anti-VM)
        Checks BIOS information in registry
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious use of NtSetInformationThreadHideFromDebugger
        Suspicious behavior: AddClipboardFormatListener
        Suspicious behavior: EnumeratesProcesses
        
        PID:1824
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe"
    3⤵
    - Deletes itself
    - Suspicious use of WriteProcessMemory
    PID:1988
  - - C:\Windows\SysWOW64\timeout.exe
      timeout -t 5
      4⤵
      Delays execution with timeout.exe
      PID:328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1E22.tmp

Filesize
32B

MD5
be980f09a839e6ed95c511824ed5ca31

SHA1
4fa4d1f170a173f494e6032b1e423fc5be608416

SHA256
7bf0cb21745162f09e70776ac472fbd1e6a99a842d1d686f73a89be8d95a6928

SHA512
d2dd7d923e857fcc28c7ddfddc59b0a750d6f26bc194d5776a6e56d540c508bb878e701e4ce2fd6c9bb709866232b76c5254f13582d5a652aac5663b780c96f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\1ED2.tmp

Filesize
71KB

MD5
e5e81f0ae5ba9a2ac3db0a17d3c9f810

SHA1
c2d6bdf002325094ff399b1e4c36df575b48ee4f

SHA256
a9826445bacefee0847379551b63949c11cd58e505129c12743da87be48254f3

SHA512
cb77e1b933cc5c8a2ff8e0e8281f1d6d45b9d3bacbd0adef33515445fb00030cdb2cefc0b7fa22d2b2085b1751ee603027f82656c8b1c289cc71a2bdea630cce

Download Submit
C:\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
C:\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
\Users\Admin\AppData\Roaming\BA7596EBCCDD67C6\zither.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
memory/1204-153-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-142-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-144-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-145-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-148-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-147-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1204-143-0x00000000009F0000-0x00000000010D8000-memory.dmp

Filesize
6.9MB

Download
memory/1496-146-0x0000000002050000-0x0000000002738000-memory.dmp

Filesize
6.9MB

Download
memory/1524-55-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-64-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-57-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-58-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-62-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-56-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1524-137-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-59-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-54-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-87-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1524-60-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1824-159-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download
memory/1824-157-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download
memory/1824-155-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download
memory/1824-158-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download
memory/1824-160-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download
memory/1824-161-0x0000000001210000-0x00000000018F8000-memory.dmp

Filesize
6.9MB

Download