d85e7025f4238dddebc7c77259c869790d0042c44233530a52153bf00fd98c5a

Analysis

max time kernel
121s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
20-06-2024 04:20

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General

Target

ec2e894b6d8330eee90102022f40be2b.exe
Size

344KB
MD5

ec2e894b6d8330eee90102022f40be2b
SHA1

ac6e8c67ff505d477bf5fff700d198f3fe8033f0
SHA256

d85e7025f4238dddebc7c77259c869790d0042c44233530a52153bf00fd98c5a
SHA512

d1d1e4c8eabca31527fdf3f0bae4fe8820ba8e886b70836780aff788d06409e02e4829bb9295d3dc3bbcf4608f7b19cb6504c7a8269adb1772abddd7083d571c
SSDEEP

6144:hTz+WrPFZvTXb4RyW42vFlOloh2E+7pYUozDBRm1+gmN:hTBPFV0RyWl3h2E+7pYm0

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2648	dwmsys.exe
2592	dwmsys.exe

Loads dropped DLL 4 IoCs

pid	Process
1660	ec2e894b6d8330eee90102022f40be2b.exe
1660	ec2e894b6d8330eee90102022f40be2b.exe
1660	ec2e894b6d8330eee90102022f40be2b.exe
2648	dwmsys.exe

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

System Information Discovery
T1082

Modifies registry class 28 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\DefaultIcon	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\runas	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\runas	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\open\command	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\open	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_amd64\\dwmsys.exe\" /START \"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\open\command	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\Content-Type = "application/x-msdownload"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\runas\command\ = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\runas\command\IsolatedCommand = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\DefaultIcon\ = "%1"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_amd64\\dwmsys.exe\" /START \"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\runas\command	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\Content-Type = "application/x-msdownload"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\DefaultIcon	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\shell\open	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\ = "Application"	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\DefaultIcon\ = "%1"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\open\command\IsolatedCommand = "\"%1\" %*"	ec2e894b6d8330eee90102022f40be2b.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\systemui\shell\runas\command	ec2e894b6d8330eee90102022f40be2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.exe\ = "systemui"	ec2e894b6d8330eee90102022f40be2b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2648	dwmsys.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2648	1660	ec2e894b6d8330eee90102022f40be2b.exe	28
PID 1660 wrote to memory of 2648	1660	ec2e894b6d8330eee90102022f40be2b.exe	28
PID 1660 wrote to memory of 2648	1660	ec2e894b6d8330eee90102022f40be2b.exe	28
PID 1660 wrote to memory of 2648	1660	ec2e894b6d8330eee90102022f40be2b.exe	28
PID 2648 wrote to memory of 2592	2648	dwmsys.exe	29
PID 2648 wrote to memory of 2592	2648	dwmsys.exe	29
PID 2648 wrote to memory of 2592	2648	dwmsys.exe	29
PID 2648 wrote to memory of 2592	2648	dwmsys.exe	29

C:\Users\Admin\AppData\Local\Temp\ec2e894b6d8330eee90102022f40be2b.exe
"C:\Users\Admin\AppData\Local\Temp\ec2e894b6d8330eee90102022f40be2b.exe"
1⤵
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe"
    3⤵
    - Executes dropped EXE
    PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Roaming\Microsoft\SysWOW_amd64\dwmsys.exe

Filesize
344KB

MD5
a44ab827c117c6dbf1166a469e4a10f4

SHA1
69f1645bf340d3b2defe6ff10049a12d79b1363a

SHA256
064acc132e30cc027142d5834dfd06ec8244d0a315f39bcd08370f93a042df5f

SHA512
477bfbe91f9b5a4f56d515b5935cd01378ce4d2f4270fe0a7ecaa15e19758ab82207fef6d59a1d5b39c8588d7fdf07c959825a1ee3d17ee7d17546e199518516

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