bb227aa7b0404ccac254372c91ddf2e307526aa82ed9c4ecd3e495c38a6b4552

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-07-2024 08:19

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General

Target

MedicareSign/eng.lng
Size

41KB
MD5

a210c2a3609b1c03df6d0219f74fc543
SHA1

78888e250c8af963268ebc467319d71a5061db6b
SHA256

3a968020e1532ecaffaef3be8f15b6ecbac3d58d129eb92511deca6904d215f5
SHA512

7e866eb3aa958d0ba2132044d7569ac97b20d712372b7343215f8383400231a12b502437a5984f376c81e50aa88b56037767514f94cd33f582b6b5c479f70ed5
SSDEEP

768:PkMuRwIvheHUkBgZs+0f/G4xI5IWbCPZLBC3RaNq3MDikSwTkAN:PKRvc/24OIWGPnsF3MDikbBN

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-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.lng\ = "lng_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\lng_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.lng	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2552	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2904	2692	cmd.exe	31
PID 2692 wrote to memory of 2904	2692	cmd.exe	31
PID 2692 wrote to memory of 2904	2692	cmd.exe	31
PID 2904 wrote to memory of 2552	2904	rundll32.exe	32
PID 2904 wrote to memory of 2552	2904	rundll32.exe	32
PID 2904 wrote to memory of 2552	2904	rundll32.exe	32
PID 2904 wrote to memory of 2552	2904	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\MedicareSign\eng.lng
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\MedicareSign\eng.lng
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2904
- - 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\MedicareSign\eng.lng"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2552

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

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

Filesize
3KB

MD5
86a71e93ae46a73c7d21e409469b03d4

SHA1
ce06c7b70aae953245f732aa5e091598fb4d415b

SHA256
1e4b9d9828601cbb616921b86566416913b1ab186630271f84a817e896b5b0d2

SHA512
4a45b42503938b0cafff1aa2d32d427f5508ea541d0905f34674facfe2870cbe68517b222edfcec732cb35d1afdb41de50f3fb6838121558a1e005fb355a553d

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