02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce

Analysis

max time kernel
138s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30/10/2022, 19:08

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General

Target

02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe
Size

333KB
MD5

835173f2eafc9692b20806a76ddaa910
SHA1

9b0308986ae54514ae5b9e5baa73cb0e7ea4cb8f
SHA256

02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce
SHA512

474346af26d6cbac44141d0c36568a9bb479c7b1c632d976e0fcce585417e2d7e2a099010ab5d7f5deff2a46a2e0088ece32a97686da1dba550be4bf9801ef13
SSDEEP

6144:+mR3kSaZpKdNPH7CYdEzjjZkXRQThsn3z6RM0TnuDErZAvq5PcAHtt:+I3zaKyYSARyh26RM0juDE2oTNt

Score

8^/10

persistence upx

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe

Executes dropped EXE 1 IoCs

pid	Process
4928	TinyDM.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000300000000071f-133.dat	upx
behavioral2/files/0x000300000000071f-134.dat	upx
behavioral2/memory/4928-135-0x0000000000800000-0x00000000008C6000-memory.dmp	upx
behavioral2/memory/4928-136-0x0000000000800000-0x00000000008C6000-memory.dmp	upx

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tiny download manager = "\"C:\\Users\\Admin\\AppData\\Local\\DM\\TinyDM.exe\" /M"	TinyDM.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	TinyDM.exe

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4928	TinyDM.exe
4928	TinyDM.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4928	TinyDM.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 4928	4344	02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe	82
PID 4344 wrote to memory of 4928	4344	02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe	82
PID 4344 wrote to memory of 4928	4344	02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe	82

C:\Users\Admin\AppData\Local\Temp\02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe
"C:\Users\Admin\AppData\Local\Temp\02659680c32010fa693645f5327673d72890edef692d72b3311dfeb9111ba4ce.exe"
1⤵
- Drops file in Drivers directory
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Users\Admin\AppData\Local\DM\TinyDM.exe
  "C:\Users\Admin\AppData\Local\DM\TinyDM.exe" /URL http://speedy.sh/7Antt/Harlem-Shake.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\DM\TinyDM.exe

Filesize
276KB

MD5
9a35818c0570489443d2deada117c0c8

SHA1
e26aac980e056ec30c79d7c75fcd2e6d9c39cc02

SHA256
121a601dbc0da76646e74d3e762bd45bb24bc1c63a23bd4e2df3a0fd91c4839b

SHA512
03246b6629e5e8e41b921b7871cc80af1186931092a2b4a1cd7761e0d5047128cd30bc725e2280dfe35b570be41781da5447e1dc31614dddf46c804fd5e76c70

Download Submit
C:\Users\Admin\AppData\Local\DM\TinyDM.exe

Filesize
276KB

MD5
9a35818c0570489443d2deada117c0c8

SHA1
e26aac980e056ec30c79d7c75fcd2e6d9c39cc02

SHA256
121a601dbc0da76646e74d3e762bd45bb24bc1c63a23bd4e2df3a0fd91c4839b

SHA512
03246b6629e5e8e41b921b7871cc80af1186931092a2b4a1cd7761e0d5047128cd30bc725e2280dfe35b570be41781da5447e1dc31614dddf46c804fd5e76c70

Download Submit
memory/4928-135-0x0000000000800000-0x00000000008C6000-memory.dmp

Filesize
792KB

Download
memory/4928-136-0x0000000000800000-0x00000000008C6000-memory.dmp

Filesize
792KB

Download