3cf195cbc51f60067352512b16f9a7997645ae2c8c7e6317ab6fac2a4cace751

Analysis

max time kernel
144s
max time network
31s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
25-03-2023 13:16

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General

Target

5e584781af90d5bce247cee27ebb5a1e.exe
Size

6.8MB
MD5

5e584781af90d5bce247cee27ebb5a1e
SHA1

6213c2300ae784be82200bc17d705bc2498ab554
SHA256

3cf195cbc51f60067352512b16f9a7997645ae2c8c7e6317ab6fac2a4cace751
SHA512

dfd3ed1db31adc0bd7e35c6e13afe48457b49beba22a0fa4bacebf38ea9c0771c4221d689743eb69e580329ec0e7b92e44dc5ee3bfdc57eef70158537caa96cf
SSDEEP

98304:NpKDRhV+4mGE0BoJN374r57mrfgs9TEAEzBUrjdiBEMQ2UEmFgpBHOSW:GDfV+LGBoJt74r+guTED+rUCzjn

Score

9^/10

discovery evasion spyware stealer themida trojan

Malware Config

Signatures

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

cumhal.exeDpEditor.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	cumhal.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

Processes:

cumhal.exeDpEditor.exe

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

Processes:

cmd.exe

pid process

1076 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

cumhal.exeDpEditor.exe

pid process

1028 cumhal.exe
1712 DpEditor.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.execumhal.exe

pid process

1256 cmd.exe
1028 cumhal.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
1076	cmd.exe

pid	process
1028	cumhal.exe
1712	DpEditor.exe

pid	process
1256	cmd.exe
1028	cumhal.exe

Themida packer 18 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe	themida
C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe	themida
\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe	themida
behavioral1/memory/1028-165-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1028-166-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1028-167-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1028-168-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1028-169-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1028-170-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral1/memory/1028-175-0x0000000000F00000-0x0000000001656000-memory.dmp	themida
behavioral1/memory/1712-178-0x0000000000900000-0x0000000001056000-memory.dmp	themida
behavioral1/memory/1712-179-0x0000000000900000-0x0000000001056000-memory.dmp	themida
behavioral1/memory/1712-180-0x0000000000900000-0x0000000001056000-memory.dmp	themida
behavioral1/memory/1712-181-0x0000000000900000-0x0000000001056000-memory.dmp	themida
behavioral1/memory/1712-182-0x0000000000900000-0x0000000001056000-memory.dmp	themida
behavioral1/memory/1712-183-0x0000000000900000-0x0000000001056000-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:

DpEditor.execumhal.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DpEditor.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	cumhal.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:

5e584781af90d5bce247cee27ebb5a1e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	5e584781af90d5bce247cee27ebb5a1e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	5e584781af90d5bce247cee27ebb5a1e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

cumhal.exeDpEditor.exe

pid process

1028 cumhal.exe
1712 DpEditor.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
1028	cumhal.exe
1712	DpEditor.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:

5e584781af90d5bce247cee27ebb5a1e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5e584781af90d5bce247cee27ebb5a1e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	5e584781af90d5bce247cee27ebb5a1e.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	5e584781af90d5bce247cee27ebb5a1e.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1604 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

DpEditor.exe

pid process

1712 DpEditor.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

5e584781af90d5bce247cee27ebb5a1e.execumhal.exeDpEditor.exe

pid process

1340 5e584781af90d5bce247cee27ebb5a1e.exe
1340 5e584781af90d5bce247cee27ebb5a1e.exe
1028 cumhal.exe
1712 DpEditor.exe

pid	process
1604	timeout.exe

pid	process
1712	DpEditor.exe

pid	process
1340	5e584781af90d5bce247cee27ebb5a1e.exe
1340	5e584781af90d5bce247cee27ebb5a1e.exe
1028	cumhal.exe
1712	DpEditor.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

5e584781af90d5bce247cee27ebb5a1e.execmd.execmd.execumhal.exe

description	pid	process	target process
PID 1340 wrote to memory of 1256	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1256	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1256	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1256	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1076	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1076	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1076	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1340 wrote to memory of 1076	1340	5e584781af90d5bce247cee27ebb5a1e.exe	cmd.exe
PID 1256 wrote to memory of 1028	1256	cmd.exe	cumhal.exe
PID 1256 wrote to memory of 1028	1256	cmd.exe	cumhal.exe
PID 1256 wrote to memory of 1028	1256	cmd.exe	cumhal.exe
PID 1256 wrote to memory of 1028	1256	cmd.exe	cumhal.exe
PID 1076 wrote to memory of 1604	1076	cmd.exe	timeout.exe
PID 1076 wrote to memory of 1604	1076	cmd.exe	timeout.exe
PID 1076 wrote to memory of 1604	1076	cmd.exe	timeout.exe
PID 1076 wrote to memory of 1604	1076	cmd.exe	timeout.exe
PID 1028 wrote to memory of 1712	1028	cumhal.exe	DpEditor.exe
PID 1028 wrote to memory of 1712	1028	cumhal.exe	DpEditor.exe
PID 1028 wrote to memory of 1712	1028	cumhal.exe	DpEditor.exe
PID 1028 wrote to memory of 1712	1028	cumhal.exe	DpEditor.exe

C:\Users\Admin\AppData\Local\Temp\5e584781af90d5bce247cee27ebb5a1e.exe
"C:\Users\Admin\AppData\Local\Temp\5e584781af90d5bce247cee27ebb5a1e.exe"
1⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1256

C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
3⤵
- 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:1028

C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
"C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.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: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:1712

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\5e584781af90d5bce247cee27ebb5a1e.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\SysWOW64\timeout.exe
timeout -t 5
3⤵
- Delays execution with timeout.exe
PID:1604

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\290B.tmp
Filesize
32B

MD5
024da3236c7646cb37b37e138501da95

SHA1
d0b2c44720c8069e7b2af5d80071cfc093fc8706

SHA256
533978fcceeeda6fae9686b55420d6b665aca67d77d00b81d09dff959ef715f3

SHA512
999bff9518efa3b4cc27d276fd81011ad35e3af884025da447de81985e389553c7b5fcba9f6cd38d09b3f180945c87579a3b8d5240a16acfc9df4c24ffede6c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\297C.tmp
Filesize
71KB

MD5
2beb695add0546f6a18496aae58b2558

SHA1
1fd818202a94825c56ad7a7793bea87c6f02960e

SHA256
132cb7037ada7d8563c5b8cf64796ed22b0fbc1ccefbbbf5faa3c18545b289ed

SHA512
e80fa42ab27afa16e0f6f72639077be7da3e73f7c7b4cecbe0d24637ee76334de77a2b61e7c3afab4e3750e53a93baa68d3cdb9c1eb55fb9a5d580cff94f21f2

Download Submit
C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
C:\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
\Users\Admin\AppData\Roaming\7AFC423B13624F9C\cumhal.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
memory/1028-168-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-175-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-170-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-169-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-167-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-166-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1028-165-0x0000000000F00000-0x0000000001656000-memory.dmp

Filesize
7.3MB

Download
memory/1256-164-0x0000000001FA0000-0x00000000026F6000-memory.dmp

Filesize
7.3MB

Download
memory/1340-73-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1340-68-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1340-75-0x0000000000400000-0x0000000000F20000-memory.dmp

Filesize
11.1MB

Download
memory/1340-61-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1340-60-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1340-59-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1340-58-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1340-57-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1340-62-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1340-71-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1340-70-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1340-74-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1340-54-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1340-67-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1340-65-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1340-56-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1340-55-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1340-64-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1712-178-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download
memory/1712-179-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download
memory/1712-180-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download
memory/1712-181-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download
memory/1712-182-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download
memory/1712-183-0x0000000000900000-0x0000000001056000-memory.dmp

Filesize
7.3MB

Download