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
117s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-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$integer.class
-
Size
488B
-
MD5
da5fe839b4f06cd01e0486a492b652bf
-
SHA1
de06f39b50fe4add9720e1af7d697b19d0f7bd99
-
SHA256
197c45d1d010948002d2372120961833a3c94ce63a82c0e08df6bd17b75b1871
-
SHA512
85a27fa313a352dfae9b26966e93bd618f831b1df9c009879ce1ca9db61502d0d03cf89e4e059d2c7392fe873f03d6f4fdcf4bd8fb33fb978496f9b5dff05a53
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 Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class\ = "class_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2756 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2756 AcroRd32.exe 2756 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2264 wrote to memory of 2292 2264 cmd.exe 29 PID 2264 wrote to memory of 2292 2264 cmd.exe 29 PID 2264 wrote to memory of 2292 2264 cmd.exe 29 PID 2292 wrote to memory of 2756 2292 rundll32.exe 30 PID 2292 wrote to memory of 2756 2292 rundll32.exe 30 PID 2292 wrote to memory of 2756 2292 rundll32.exe 30 PID 2292 wrote to memory of 2756 2292 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$integer.class1⤵
- Suspicious use of WriteProcessMemory
PID:2264 -
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$integer.class2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$integer.class"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2756
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD575fe3dc5793178f6af78557510692f13
SHA179909af6ef52ebb84f75b425d0152e378ce58ee4
SHA2565cca32a94a494ea270ba98c97a99c6e4195d064b4b5d5410302786226b9c14d1
SHA512d595aa618b4b4a62fa664a97f570e16bd5cfbf56ab3fa3f99f85fab3d589425cf97f4c6fde6ab96c0f3995e51f571b5f4ed11e81c39730ced74900aeb019f4dd