3ea350fa6916e36ba67a8a17a347bb89ab2567120eb9af4cf6648c1809711274

Analysis

max time kernel
1202s
max time network
847s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
20-07-2023 05:12

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General

Target

1d81c09d8249410587ae.zipaa
Size

276B
MD5

6b102834be73768a654fb99389be7022
SHA1

04c8bff7b2103e23d6ba39a17d40df6529fd16d1
SHA256

6ea1b85c4c4f122db72b2371a14d67a0c0a896024e2d7471f4aa2f651f71aa2f
SHA512

29d4c9122c08c5823d49d7f12b6c1df9c3396f4d6d762cf55e4dd652cc86557f9afadb309af97c162e1107db62dad04e1570296207afbce7dee72c63b4a3569c

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\.zipaa	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\zipaa_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\.zipaa\ = "zipaa_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 312 wrote to memory of 2840	312	cmd.exe	29
PID 312 wrote to memory of 2840	312	cmd.exe	29
PID 312 wrote to memory of 2840	312	cmd.exe	29
PID 2840 wrote to memory of 2836	2840	rundll32.exe	30
PID 2840 wrote to memory of 2836	2840	rundll32.exe	30
PID 2840 wrote to memory of 2836	2840	rundll32.exe	30
PID 2840 wrote to memory of 2836	2840	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\1d81c09d8249410587ae.zipaa
1⤵
- Suspicious use of WriteProcessMemory
PID:312
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\1d81c09d8249410587ae.zipaa
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2840
- - 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\1d81c09d8249410587ae.zipaa"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
7eadacdb170c32db4f6c470e56ca9661

SHA1
c454894310061f10dd345b60e4c818319b7b0a5b

SHA256
bd9852a594e00704f898639f63f5d88fb978415209d4ea39e403e545a91e2931

SHA512
eb371afd4089a1a86eb0444a9ec99c72dfb5b607bd3895bce869e20089f75c1482d9fe41817160caa7203d51101755676381bc130d27d6a9441930194720c0b9

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