ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d

Analysis

max time kernel
167s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 22:44

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General

Target
ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe
Size 70KB
Sample221126-2n4vlaec5s
SHA256 ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d
MD5 4f88ec6778da2f16eb8639f9f15ca7e6
SHA1 d6c182ea2dd5364f554b21e9aedcf5740254766f
SHA512 2a76be18cf57625e3da2c3e3dbeaf5025126786b521d573509e9aa4bf806fb684b5713fceef305afbbe1053f937b4e159580d1a9fe2dbb27e13a42b9d4161b49
SSDEEP 1536:NcPBEKRbN19AxYPd75HnxnX9e3cLMt/C:NcB179xtQcLMt6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	taskmgr.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	taskmgr.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	taskmgr.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files (x86)\Common Files\System\taskmgr.exe = "C:\\Program Files (x86)\\Common Files\\System\\taskmgr.exe:*:Enabled:Windows Update"	taskmgr.exe

Executes dropped EXE 1 IoCs

pid	Process
1432	taskmgr.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Program Files (x86)\\Common Files\\System\\taskmgr.exe"	taskmgr.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\System\taskmgr.exe	taskmgr.exe
File opened for modification	C:\Program Files (x86)\Common Files\System	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe
File created	C:\Program Files (x86)\Common Files\System\taskmgr.exe	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\taskmgr.exe	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe
File opened for modification	C:\Program Files (x86)\Common Files\System	taskmgr.exe
File created	C:\Program Files (x86)\Common Files\System\taskmgr.exe	taskmgr.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 1432	3332	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe	78
PID 3332 wrote to memory of 1432	3332	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe	78
PID 3332 wrote to memory of 1432	3332	ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe	78

C:\Users\Admin\AppData\Local\Temp\ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe
"C:\Users\Admin\AppData\Local\Temp\ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Program Files (x86)\Common Files\System\taskmgr.exe
  "C:\Program Files (x86)\Common Files\System\taskmgr.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Program Files directory
  PID:1432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

taskmgr.exe

Path C:\Program Files (x86)\Common Files\System\taskmgr.exe
Size 70KB
SHA256 ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d
MD5 4f88ec6778da2f16eb8639f9f15ca7e6
SHA1 d6c182ea2dd5364f554b21e9aedcf5740254766f
SHA512 2a76be18cf57625e3da2c3e3dbeaf5025126786b521d573509e9aa4bf806fb684b5713fceef305afbbe1053f937b4e159580d1a9fe2dbb27e13a42b9d4161b49
SSDEEP 1536:NcPBEKRbN19AxYPd75HnxnX9e3cLMt/C:NcB179xtQcLMt6
MD5 SHA1 SHA512 SSDEEP

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taskmgr.exe

Path C:\Program Files (x86)\Common Files\System\taskmgr.exe
Size 70KB
SHA256 ec322fcb2e5e123c1655c2bf3b9ec531022e8dea7bdad01b0fea6108d6ae567d
MD5 4f88ec6778da2f16eb8639f9f15ca7e6
SHA1 d6c182ea2dd5364f554b21e9aedcf5740254766f
SHA512 2a76be18cf57625e3da2c3e3dbeaf5025126786b521d573509e9aa4bf806fb684b5713fceef305afbbe1053f937b4e159580d1a9fe2dbb27e13a42b9d4161b49
SSDEEP 1536:NcPBEKRbN19AxYPd75HnxnX9e3cLMt/C:NcB179xtQcLMt6
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads