Windows 7 deprecation
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Overview
overview
3Static
static
1error.jar
windows7-x64
1error.jar
windows10-2004-x64
1com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/appsfl....class
windows7-x64
3com/appsfl....class
windows10-2004-x64
3com/lovely....class
windows7-x64
3com/lovely....class
windows10-2004-x64
3com/lovely....class
windows7-x64
3com/lovely....class
windows10-2004-x64
3Analysis
-
max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
19/01/2024, 10:05
Static task
static1
Behavioral task
behavioral1
Sample
error.jar
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
error.jar
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
com/appsflyer/oaid/R$dimen.class
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
com/appsflyer/oaid/R$dimen.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
com/appsflyer/oaid/R$drawable.class
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
com/appsflyer/oaid/R$drawable.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
com/appsflyer/oaid/R$id.class
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
com/appsflyer/oaid/R$id.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
com/appsflyer/oaid/R$integer.class
Resource
win7-20231129-en
Behavioral task
behavioral10
Sample
com/appsflyer/oaid/R$integer.class
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
com/appsflyer/oaid/R$layout.class
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
com/appsflyer/oaid/R$layout.class
Resource
win10v2004-20231222-en
Behavioral task
behavioral13
Sample
com/appsflyer/oaid/R$string.class
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
com/appsflyer/oaid/R$string.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
com/appsflyer/oaid/R$style.class
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
com/appsflyer/oaid/R$style.class
Resource
win10v2004-20231222-en
Behavioral task
behavioral17
Sample
com/appsflyer/oaid/R$styleable.class
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
com/appsflyer/oaid/R$styleable.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
com/appsflyer/oaid/R.class
Resource
win7-20231215-en
Behavioral task
behavioral20
Sample
com/appsflyer/oaid/R.class
Resource
win10v2004-20231222-en
Behavioral task
behavioral21
Sample
com/appsflyer/share/CrossPromotionHelper$a.class
Resource
win7-20231215-en
Behavioral task
behavioral22
Sample
com/appsflyer/share/CrossPromotionHelper$a.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral23
Sample
com/appsflyer/share/CrossPromotionHelper.class
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
com/appsflyer/share/CrossPromotionHelper.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral25
Sample
com/appsflyer/share/LinkGenerator.class
Resource
win7-20231129-en
Behavioral task
behavioral26
Sample
com/appsflyer/share/LinkGenerator.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral27
Sample
com/appsflyer/share/ShareInviteHelper.class
Resource
win7-20231215-en
Behavioral task
behavioral28
Sample
com/appsflyer/share/ShareInviteHelper.class
Resource
win10v2004-20231215-en
Behavioral task
behavioral29
Sample
com/lovelydast/dating/MainActivity$a.class
Resource
win7-20231129-en
Behavioral task
behavioral30
Sample
com/lovelydast/dating/MainActivity$a.class
Resource
win10v2004-20231222-en
Behavioral task
behavioral31
Sample
com/lovelydast/dating/MainActivity.class
Resource
win7-20231215-en
Behavioral task
behavioral32
Sample
com/lovelydast/dating/MainActivity.class
Resource
win10v2004-20231215-en
General
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Target
com/appsflyer/oaid/R$id.class
-
Size
3KB
-
MD5
17ee1a7587d41b2ecece37739536cda0
-
SHA1
7ec007eb1490872ece5930085ac66bf4bad3e9a1
-
SHA256
5a75cbbbbe981a13b1cf4a27acbe6809ddfd3e92e2c614b11d7ce2e181bdf651
-
SHA512
882457a3ca5c4161029b947fefb04e86edac151595f8957fb906cd6a02680c66afc0e5e797b1762cd27e962c2e0c566732f3da2257ffe93a24b1bea161820338
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.class\ = "class_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.class rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\class_auto_file\shell\Read\command rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2876 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2876 AcroRd32.exe 2876 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1944 wrote to memory of 2692 1944 cmd.exe 16 PID 1944 wrote to memory of 2692 1944 cmd.exe 16 PID 1944 wrote to memory of 2692 1944 cmd.exe 16 PID 2692 wrote to memory of 2876 2692 rundll32.exe 30 PID 2692 wrote to memory of 2876 2692 rundll32.exe 30 PID 2692 wrote to memory of 2876 2692 rundll32.exe 30 PID 2692 wrote to memory of 2876 2692 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$id.class1⤵
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$id.class2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$id.class"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2876
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD5bcd21f4644f2e0a72a736d89acef3f47
SHA19d3c51d824a408182d775eee28fb70d4660a7783
SHA256adf7c018c4ba8632a613aaa65d048b77266542c864168aa0f1b8eeb65bd32a28
SHA5122a4313ca53886c582bd875f72689d02b8c831eb54f794a8a00b348c08e5070a44ec8515e4cd6af1de8e169c5419b8c16dfe489aff09c4f602a89eea615595456