cryptbot | bc8a51ae8941791b3322fcec60bd7d450c80ad7d5625084f9e59dd580883d609

Analysis

max time kernel
143s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	af92a902d7a44c35209751a6a4ea76b7.exe

Executes dropped EXE 2 IoCs

pid	Process
4852	zither.exe
5048	DpEditor.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 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0006000000023167-237.dat	themida
behavioral2/files/0x0006000000023167-238.dat	themida
behavioral2/memory/4852-239-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/4852-240-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/4852-241-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/4852-242-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/4852-243-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/4852-244-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/files/0x0006000000023172-247.dat	themida
behavioral2/files/0x0006000000023172-249.dat	themida
behavioral2/memory/4852-248-0x0000000000D90000-0x0000000001478000-memory.dmp	themida
behavioral2/memory/5048-250-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-251-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-252-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-253-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-254-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-255-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-256-0x00000000002F0000-0x00000000009D8000-memory.dmp	themida
behavioral2/memory/5048-257-0x00000000002F0000-0x00000000009D8000-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
4852	zither.exe
5048	DpEditor.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2052 set thread context of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86

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
4404	timeout.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5048	DpEditor.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1816	af92a902d7a44c35209751a6a4ea76b7.exe
1816	af92a902d7a44c35209751a6a4ea76b7.exe
4852	zither.exe
4852	zither.exe
5048	DpEditor.exe
5048	DpEditor.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 2052 wrote to memory of 1816	2052	af92a902d7a44c35209751a6a4ea76b7.exe	86
PID 1816 wrote to memory of 3740	1816	af92a902d7a44c35209751a6a4ea76b7.exe	90
PID 1816 wrote to memory of 3740	1816	af92a902d7a44c35209751a6a4ea76b7.exe	90
PID 1816 wrote to memory of 3740	1816	af92a902d7a44c35209751a6a4ea76b7.exe	90
PID 1816 wrote to memory of 2976	1816	af92a902d7a44c35209751a6a4ea76b7.exe	92
PID 1816 wrote to memory of 2976	1816	af92a902d7a44c35209751a6a4ea76b7.exe	92
PID 1816 wrote to memory of 2976	1816	af92a902d7a44c35209751a6a4ea76b7.exe	92
PID 3740 wrote to memory of 4852	3740	cmd.exe	94
PID 3740 wrote to memory of 4852	3740	cmd.exe	94
PID 3740 wrote to memory of 4852	3740	cmd.exe	94
PID 2976 wrote to memory of 4404	2976	cmd.exe	95
PID 2976 wrote to memory of 4404	2976	cmd.exe	95
PID 2976 wrote to memory of 4404	2976	cmd.exe	95
PID 4852 wrote to memory of 5048	4852	zither.exe	99
PID 4852 wrote to memory of 5048	4852	zither.exe	99
PID 4852 wrote to memory of 5048	4852	zither.exe	99

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:2052
- C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe
  "C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe"
  2⤵
  - Checks computer location settings
  - Maps connected drives based on registry
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\2F433E850765CA90\zither.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3740
  - - C:\Users\Admin\AppData\Roaming\2F433E850765CA90\zither.exe
      C:\Users\Admin\AppData\Roaming\2F433E850765CA90\zither.exe
      4⤵
      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: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4852
    - - 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:5048
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\af92a902d7a44c35209751a6a4ea76b7.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2976
  - - C:\Windows\SysWOW64\timeout.exe
      timeout -t 5
      4⤵
      Delays execution with timeout.exe
      PID:4404

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\8846.tmp

Filesize
32B

MD5
6bb6e374b5dbd021622648b4d4e9afc7

SHA1
df356bb84780e332c960769d552f67d1f5221cce

SHA256
6546a2ec37419190b5f256f2c09efd90f8dd11fe98e5ae4521f8e07ecd64a2aa

SHA512
42b05356304dbbf2dd1ba7c7bc8dd2fcfc908d80fcd7c25771a3722ac946fd04575591d530e802799f8c17d9622db361f76b69c3985fd1ee63fce38777938644

Download Submit
C:\Users\Admin\AppData\Local\Temp\8ABB.tmp

Filesize
71KB

MD5
92d24961d2ebaacf1ace5463dfc9930d

SHA1
99ffaf6904ab616c33a37ce01d383e4a493df335

SHA256
9013688dec264c615178e151c2eb5f0b2eb9fe8cfad867b311d8581d921c73f3

SHA512
77598c77f219ab5234b8b84bcfe873f40e7464b224fac3c8568b300d3f2563f7ef5ad9ec5cccc0d719e7d3e489a164b04b6b36316196afea0b8051de3c751cc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\9277.tmp

Filesize
2KB

MD5
dce9b749d38fdc247ab517e8a76e6102

SHA1
d6c5b6548e1a3da3326bd097c50c49fc7906be3f

SHA256
5087b8c7f2cecceac61d7bd02b939888cf2cc5a452676f28fd5c076eb1ae7ea7

SHA512
56c276f0a070da656c98520aa720994d78f1bf0bbb085a5f6fb4fd18fed2bbba1eb8e97b54d58eaa9a978d21d64678170f49c020feb19d8545d158a2d8d58446

Download Submit
C:\Users\Admin\AppData\Roaming\2F433E850765CA90\zither.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
C:\Users\Admin\AppData\Roaming\2F433E850765CA90\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
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

Filesize
2.6MB

MD5
428f6492fa085c49652ed43d89606669

SHA1
8f2667fcf6ef222fbfa1340bb0aa5a66f1705795

SHA256
73f8326150b0f9ea6cca8d6ace2d569443c75557f33e479b9481d0c1f29503fe

SHA512
003fa3ca3cd2128164694ac4f24584c3f6703d2dba34d5d0c6987e37f8389f064c0f00d9b084940b03ff3cb930271453e1415bfff49b0c486fdbb075cfc59e63

Download Submit
memory/1816-133-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1816-134-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1816-135-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1816-136-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1816-234-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4852-241-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-242-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-243-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-244-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-240-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-239-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/4852-248-0x0000000000D90000-0x0000000001478000-memory.dmp

Filesize
6.9MB

Download
memory/5048-250-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-251-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-252-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-253-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-254-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-255-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-256-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download
memory/5048-257-0x00000000002F0000-0x00000000009D8000-memory.dmp

Filesize
6.9MB

Download