b06bf1b489aa7448b29376668aeb17392f2a266246010933b9fa38548c146d57

Analysis

max time kernel
139s
max time network
35s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
25-03-2023 19:01

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General

Target

786215476472e75e6ee2be84c1d2e989.exe
Size

6.8MB
MD5

786215476472e75e6ee2be84c1d2e989
SHA1

19e7ea1e6cd82a302b68c0642898786bdd2bc489
SHA256

b06bf1b489aa7448b29376668aeb17392f2a266246010933b9fa38548c146d57
SHA512

42c917ed56eeaa58d391314869d8f099dcf9baff7ab23a39518e171e445d838002a69b04ab941af8b58ce7b7e2d198b3aa9dd8ec929525faa9a02d04d749c7c1
SSDEEP

196608:LzJ3OmjEn9v0J+Mq6Br++jcf/27E6AeUStw6qadZm:vJ3OmjE9v0Jhq6ncHQby0qadZm

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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cumhal.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1972 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

cumhal.exeDpEditor.exe

pid process

1800 cumhal.exe
1680 DpEditor.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.execumhal.exe

pid process

1520 cmd.exe
1800 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
1972	cmd.exe

pid	process
1800	cumhal.exe
1680	DpEditor.exe

pid	process
1520	cmd.exe
1800	cumhal.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe	themida
C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe	themida
\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe	themida
behavioral1/memory/1800-156-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1800-157-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1800-158-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1800-159-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1800-160-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1800-161-0x0000000000CC0000-0x0000000001416000-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/1800-167-0x0000000000CC0000-0x0000000001416000-memory.dmp	themida
behavioral1/memory/1680-169-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-170-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-171-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-172-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-173-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-174-0x0000000000210000-0x0000000000966000-memory.dmp	themida
behavioral1/memory/1680-176-0x0000000000210000-0x0000000000966000-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:

cumhal.exeDpEditor.exe

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

786215476472e75e6ee2be84c1d2e989.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	786215476472e75e6ee2be84c1d2e989.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	786215476472e75e6ee2be84c1d2e989.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

cumhal.exeDpEditor.exe

pid process

1800 cumhal.exe
1680 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
1800	cumhal.exe
1680	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:

786215476472e75e6ee2be84c1d2e989.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	786215476472e75e6ee2be84c1d2e989.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	786215476472e75e6ee2be84c1d2e989.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	786215476472e75e6ee2be84c1d2e989.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1560 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

DpEditor.exe

pid process

1680 DpEditor.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

786215476472e75e6ee2be84c1d2e989.execumhal.exeDpEditor.exe

pid process

1188 786215476472e75e6ee2be84c1d2e989.exe
1188 786215476472e75e6ee2be84c1d2e989.exe
1800 cumhal.exe
1680 DpEditor.exe

pid	process
1560	timeout.exe

pid	process
1680	DpEditor.exe

pid	process
1188	786215476472e75e6ee2be84c1d2e989.exe
1188	786215476472e75e6ee2be84c1d2e989.exe
1800	cumhal.exe
1680	DpEditor.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

786215476472e75e6ee2be84c1d2e989.execmd.execmd.execumhal.exe

description	pid	process	target process
PID 1188 wrote to memory of 1520	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1520	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1520	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1520	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1520 wrote to memory of 1800	1520	cmd.exe	cumhal.exe
PID 1520 wrote to memory of 1800	1520	cmd.exe	cumhal.exe
PID 1520 wrote to memory of 1800	1520	cmd.exe	cumhal.exe
PID 1520 wrote to memory of 1800	1520	cmd.exe	cumhal.exe
PID 1188 wrote to memory of 1972	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1972	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1972	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1188 wrote to memory of 1972	1188	786215476472e75e6ee2be84c1d2e989.exe	cmd.exe
PID 1972 wrote to memory of 1560	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1560	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1560	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1560	1972	cmd.exe	timeout.exe
PID 1800 wrote to memory of 1680	1800	cumhal.exe	DpEditor.exe
PID 1800 wrote to memory of 1680	1800	cumhal.exe	DpEditor.exe
PID 1800 wrote to memory of 1680	1800	cumhal.exe	DpEditor.exe
PID 1800 wrote to memory of 1680	1800	cumhal.exe	DpEditor.exe

C:\Users\Admin\AppData\Local\Temp\786215476472e75e6ee2be84c1d2e989.exe
"C:\Users\Admin\AppData\Local\Temp\786215476472e75e6ee2be84c1d2e989.exe"
1⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1188

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1520

C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe
C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\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:1800

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:1680

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\786215476472e75e6ee2be84c1d2e989.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\timeout.exe
timeout -t 5
3⤵
- Delays execution with timeout.exe
PID:1560

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\1665.tmp
Filesize
32B

MD5
502ef3f3ece4863580320144bb4def88

SHA1
c9b0633d81023b22bd1ac521797b853fc4ba1014

SHA256
5e4a980e509800ef5eba533fbfb5e7f38bd55d4b72008bb14be344a6c699a945

SHA512
28d53daf4f9c126cd639bb52254c70cca7198de167b64fd938168bfa22410ac6dcc5d34f740aad44d6a6eb76334a5dd422a65e7e4f6ab809df7ff4d110110228

Download Submit
C:\Users\Admin\AppData\Local\Temp\16E6.tmp
Filesize
71KB

MD5
7634ebd082abbba35a8e6a300ec83c51

SHA1
953666e70fbed932e4bed446f1d1e432781972b7

SHA256
792aa1b2f647c981a8778a35717809ff0783bc4b6c022e6ed049c1029f6c584f

SHA512
6f95e7c7c4548ad206294e5fc13f9ed0bad9476e5775ac4e06bd324c6e0a14382fcf5f604e5899084ee2f3733405716d60842f3393d5fa174902dbb055d40f3e

Download Submit
C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\cumhal.exe
Filesize
2.9MB

MD5
7f9a9c01f4cb2103b3cb04c7f4c94d4f

SHA1
3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

SHA256
f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

SHA512
1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

Download Submit
C:\Users\Admin\AppData\Roaming\886A1A2F1A251A52\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\886A1A2F1A251A52\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/1188-55-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1188-65-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1188-64-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1188-61-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1188-67-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1188-54-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1188-70-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1188-71-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1188-73-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1188-74-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1188-75-0x0000000000400000-0x0000000000F34000-memory.dmp

Filesize
11.2MB

Download
memory/1188-60-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1188-59-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1188-58-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1188-57-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1188-56-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1188-68-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1188-62-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1520-155-0x0000000002040000-0x0000000002796000-memory.dmp

Filesize
7.3MB

Download
memory/1680-170-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-169-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-174-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-173-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-172-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-171-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1680-176-0x0000000000210000-0x0000000000966000-memory.dmp

Filesize
7.3MB

Download
memory/1800-161-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-159-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-158-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-156-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-157-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-175-0x0000000002CB0000-0x0000000003406000-memory.dmp

Filesize
7.3MB

Download
memory/1800-160-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download
memory/1800-168-0x0000000002CB0000-0x0000000003406000-memory.dmp

Filesize
7.3MB

Download
memory/1800-167-0x0000000000CC0000-0x0000000001416000-memory.dmp

Filesize
7.3MB

Download