44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

Analysis

max time kernel
149s
max time network
36s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
01-07-2023 14:06

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General

Target

persisted_first_party_sets.json
Size

2B
MD5

99914b932bd37a50b983c5e7c90ae93b
SHA1

bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f
SHA256

44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
SHA512

27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3297628651-743815474-1126733160-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1156	AcroRd32.exe
1732	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	1052	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1052	AUDIODG.EXE
Token: 33	1052	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1052	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1156	AcroRd32.exe
1156	AcroRd32.exe
1156	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1808	2040	cmd.exe	29
PID 2040 wrote to memory of 1808	2040	cmd.exe	29
PID 2040 wrote to memory of 1808	2040	cmd.exe	29
PID 1808 wrote to memory of 1156	1808	rundll32.exe	30
PID 1808 wrote to memory of 1156	1808	rundll32.exe	30
PID 1808 wrote to memory of 1156	1808	rundll32.exe	30
PID 1808 wrote to memory of 1156	1808	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1156

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1868

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x154
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1052

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json"
1⤵
PID:1584

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
PID:1732

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
8d417743bb4b2f0d3bc9a0031d9c7fc9

SHA1
44596bab5251d35a60b53e42466de067d04668ba

SHA256
d126fa9989cea36e8ad0acb59f15421749f88796a33b35794236a4b19da66d37

SHA512
e372777bd63a2068b3221d23dfc955682f9b2e9e8e6d9d11f89ea5e7a144b4dcabc2b7f83940665a3c64fb75b0bc7182d1338d1734a129edd294d3fee4d06e99

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