cryptbot | 6d6a5f70a5f8d597d4074ac0c2d84dd9ed5f41aa39305f4260b831a03bec4569

Analysis

max time kernel
148s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16-03-2023 14:21

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General

Target

21f1e57607e3734bd31d55b02f3fbb9e.exe
Size

791KB
MD5

21f1e57607e3734bd31d55b02f3fbb9e
SHA1

2653db1285efc7b847bb56a4e6a5434b03350ac5
SHA256

6d6a5f70a5f8d597d4074ac0c2d84dd9ed5f41aa39305f4260b831a03bec4569
SHA512

833a04a5edb72e31c5926907f317132c28b1d19be25d6f4fa74292d1da24eeb0f4a72968d0ae79d3c09e4d1e0010196ab92fab4e80385b690e96e28a3adca66c
SSDEEP

24576:eaO+WvtXJNDY+mfQ2p0WGstpe8gNZ4bG58b4H:ex+KZNDvmfd+WGsi4658M

Score

10^/10

cryptbot discovery evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

http://erniku42.top/gate.php

Attributes

payload_url
http://ovapfa05.top/unfele

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

Processes:

DpEditor.exeunfele.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	DpEditor.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	unfele.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:

DpEditor.exeunfele.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DpEditor.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	unfele.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	unfele.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DpEditor.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

380 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

unfele.exeDpEditor.exe

pid process

2016 unfele.exe
1612 DpEditor.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exeunfele.exe

pid process

744 cmd.exe
2016 unfele.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

pid	process
380	cmd.exe

pid	process
2016	unfele.exe
1612	DpEditor.exe

pid	process
744	cmd.exe
2016	unfele.exe

Themida packer 17 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe	themida
\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe	themida
C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe	themida
behavioral1/memory/2016-147-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
behavioral1/memory/2016-148-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
behavioral1/memory/2016-150-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
behavioral1/memory/2016-149-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
behavioral1/memory/2016-151-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral1/memory/2016-157-0x0000000001300000-0x00000000019EB000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral1/memory/1612-159-0x0000000000830000-0x0000000000F1B000-memory.dmp	themida
behavioral1/memory/1612-160-0x0000000000830000-0x0000000000F1B000-memory.dmp	themida
behavioral1/memory/1612-162-0x0000000000830000-0x0000000000F1B000-memory.dmp	themida
behavioral1/memory/1612-161-0x0000000000830000-0x0000000000F1B000-memory.dmp	themida
behavioral1/memory/1612-163-0x0000000000830000-0x0000000000F1B000-memory.dmp	themida
behavioral1/memory/1612-165-0x0000000000830000-0x0000000000F1B000-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

Processes:

unfele.exeDpEditor.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	unfele.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

Processes:

21f1e57607e3734bd31d55b02f3fbb9e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	21f1e57607e3734bd31d55b02f3fbb9e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	21f1e57607e3734bd31d55b02f3fbb9e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

unfele.exeDpEditor.exe

pid process

2016 unfele.exe
1612 DpEditor.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

21f1e57607e3734bd31d55b02f3fbb9e.exe

description pid process target process

PID 1604 set thread context of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
2016	unfele.exe
1612	DpEditor.exe

description	pid	process	target process
PID 1604 set thread context of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe

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

Processes:

21f1e57607e3734bd31d55b02f3fbb9e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	21f1e57607e3734bd31d55b02f3fbb9e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	21f1e57607e3734bd31d55b02f3fbb9e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	21f1e57607e3734bd31d55b02f3fbb9e.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1040 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

DpEditor.exe

pid process

1612 DpEditor.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

21f1e57607e3734bd31d55b02f3fbb9e.exeunfele.exeDpEditor.exe

pid process

1412 21f1e57607e3734bd31d55b02f3fbb9e.exe
2016 unfele.exe
1612 DpEditor.exe

pid	process
1040	timeout.exe

pid	process
1612	DpEditor.exe

pid	process
1412	21f1e57607e3734bd31d55b02f3fbb9e.exe
2016	unfele.exe
1612	DpEditor.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

21f1e57607e3734bd31d55b02f3fbb9e.exe21f1e57607e3734bd31d55b02f3fbb9e.execmd.execmd.exeunfele.exe

description	pid	process	target process
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1604 wrote to memory of 1412	1604	21f1e57607e3734bd31d55b02f3fbb9e.exe	21f1e57607e3734bd31d55b02f3fbb9e.exe
PID 1412 wrote to memory of 744	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 744	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 744	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 744	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 380	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 380	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 380	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 1412 wrote to memory of 380	1412	21f1e57607e3734bd31d55b02f3fbb9e.exe	cmd.exe
PID 380 wrote to memory of 1040	380	cmd.exe	timeout.exe
PID 380 wrote to memory of 1040	380	cmd.exe	timeout.exe
PID 380 wrote to memory of 1040	380	cmd.exe	timeout.exe
PID 380 wrote to memory of 1040	380	cmd.exe	timeout.exe
PID 744 wrote to memory of 2016	744	cmd.exe	unfele.exe
PID 744 wrote to memory of 2016	744	cmd.exe	unfele.exe
PID 744 wrote to memory of 2016	744	cmd.exe	unfele.exe
PID 744 wrote to memory of 2016	744	cmd.exe	unfele.exe
PID 2016 wrote to memory of 1612	2016	unfele.exe	DpEditor.exe
PID 2016 wrote to memory of 1612	2016	unfele.exe	DpEditor.exe
PID 2016 wrote to memory of 1612	2016	unfele.exe	DpEditor.exe
PID 2016 wrote to memory of 1612	2016	unfele.exe	DpEditor.exe

C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe
"C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1604

C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe
"C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"
2⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1412

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:744

C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe
C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.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:2016

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:1612

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"
3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:380

C:\Windows\SysWOW64\timeout.exe
timeout -t 5
4⤵
- Delays execution with timeout.exe
PID:1040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\5BED.tmp
Filesize
32B

MD5
0bbf74f0949aafa4bfd20ff65ac39725

SHA1
db3b6ece625c1946ca70943ce7c83f0f44d01b8d

SHA256
9822a5194a3aee6a62472654f3a5a8e1e409f48450f4b1e589092aa22afba1ea

SHA512
0177b6f71662249fb9af79a7ba584a39b3b808b92bc80372d4362ec1fc580c0f2303e0ee7af9d3b6251fa0c6e3150dbb9f18ad27ba6e791c9a0ddde3a9993551

Download Submit
C:\Users\Admin\AppData\Local\Temp\5F0C.tmp
Filesize
71KB

MD5
e5e23f78017d1e6eddfc8480e1679ee4

SHA1
0667bd1b7129b105bd2c66ef6ad54c9648aec072

SHA256
4fed2f4c33a3876390d8520f184062927aca8e0ce3538127de3a2f66ea856d91

SHA512
b1260e7ba7ad6d5dd0daeabc5f7cc1fc7a2e9259092f8d70d3d9eed923ed8aa60adcce4c27e9cb20966d500ed59edaaba9570f01d6a84180f1fb83e7b5c20049

Download Submit
C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe
Filesize
2.7MB

MD5
a7729b292d51fa985505d96f0414d3c1

SHA1
30a0d5fac038a662c98a5c96e647e8f00f5b24a2

SHA256
28bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e

SHA512
bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4

Download Submit
C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe
Filesize
2.7MB

MD5
a7729b292d51fa985505d96f0414d3c1

SHA1
30a0d5fac038a662c98a5c96e647e8f00f5b24a2

SHA256
28bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e

SHA512
bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4

Download Submit
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.7MB

MD5
a7729b292d51fa985505d96f0414d3c1

SHA1
30a0d5fac038a662c98a5c96e647e8f00f5b24a2

SHA256
28bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e

SHA512
bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4

Download Submit
\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe
Filesize
2.7MB

MD5
a7729b292d51fa985505d96f0414d3c1

SHA1
30a0d5fac038a662c98a5c96e647e8f00f5b24a2

SHA256
28bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e

SHA512
bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4

Download Submit
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.7MB

MD5
a7729b292d51fa985505d96f0414d3c1

SHA1
30a0d5fac038a662c98a5c96e647e8f00f5b24a2

SHA256
28bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e

SHA512
bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4

Download Submit
memory/744-146-0x0000000002140000-0x000000000282B000-memory.dmp

Filesize
6.9MB

Download
memory/1412-56-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-55-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-57-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-60-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-59-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-139-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-141-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-58-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-65-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-64-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1412-62-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1412-54-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1612-163-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/1612-161-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/1612-162-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/1612-165-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/1612-160-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/1612-159-0x0000000000830000-0x0000000000F1B000-memory.dmp

Filesize
6.9MB

Download
memory/2016-147-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download
memory/2016-157-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download
memory/2016-151-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download
memory/2016-149-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download
memory/2016-150-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download
memory/2016-148-0x0000000001300000-0x00000000019EB000-memory.dmp

Filesize
6.9MB

Download