1d5dba3779c655b36f183737b4ca2a9022dc1bf01d39c01061c294dce6002574

Analysis

max time kernel
109s
max time network
118s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
28/12/2022, 04:39

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General

Target

Instalador SisFarmacia V4.0/SisFarmacia.exe
Size

26.3MB
MD5

d70ef7837cfe5384462b2beefa416a29
SHA1

cd3a9add1593afdd2ed010d03293837275a0685f
SHA256

db5f11d627bc35e0ae02c83b3aa8bcde104f8b0002213aa4b2ebdfc22dc80b23
SHA512

9027c8dd06805b79f1e2dbf0ba83d87c3c01a642c4a92b2bf7f218814ac95b424a19855a20e146af8d2c2280f105edfd1235b27642e4ecdf20048c046a6a6a84
SSDEEP

786432:+RVsd+VFvQYHQY1pjPPNsNlEDJ0Z8+hcO2ona7c:YVFY+1pbNi+N2CSaQ

Score

8^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
276	SisFarmacia.tmp
1812	SisFarmacia.exe

Loads dropped DLL 2 IoCs

pid	Process
2008	SisFarmacia.exe
276	SisFarmacia.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SisFarmacia\SisFarmacia.exe	SisFarmacia.tmp
File created	C:\Program Files (x86)\SisFarmacia\unins000.dat	SisFarmacia.tmp
File created	C:\Program Files (x86)\SisFarmacia\is-D685C.tmp	SisFarmacia.tmp
File created	C:\Program Files (x86)\SisFarmacia\is-J9VUB.tmp	SisFarmacia.tmp
File opened for modification	C:\Program Files (x86)\SisFarmacia\unins000.dat	SisFarmacia.tmp

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\java.com	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{2A736B81-866A-11ED-B243-5AF036119C64} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\java.com\NumberOfSubdomains = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
276	SisFarmacia.tmp
276	SisFarmacia.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	1168	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1168	AUDIODG.EXE
Token: 33	1168	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1168	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
276	SisFarmacia.tmp
1776	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1776	iexplore.exe
1776	iexplore.exe
1176	IEXPLORE.EXE
1176	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 2008 wrote to memory of 276	2008	SisFarmacia.exe	28
PID 276 wrote to memory of 1812	276	SisFarmacia.tmp	31
PID 276 wrote to memory of 1812	276	SisFarmacia.tmp	31
PID 276 wrote to memory of 1812	276	SisFarmacia.tmp	31
PID 276 wrote to memory of 1812	276	SisFarmacia.tmp	31
PID 1812 wrote to memory of 1776	1812	SisFarmacia.exe	32
PID 1812 wrote to memory of 1776	1812	SisFarmacia.exe	32
PID 1812 wrote to memory of 1776	1812	SisFarmacia.exe	32
PID 1812 wrote to memory of 1776	1812	SisFarmacia.exe	32
PID 1776 wrote to memory of 1176	1776	iexplore.exe	34
PID 1776 wrote to memory of 1176	1776	iexplore.exe	34
PID 1776 wrote to memory of 1176	1776	iexplore.exe	34
PID 1776 wrote to memory of 1176	1776	iexplore.exe	34

C:\Users\Admin\AppData\Local\Temp\Instalador SisFarmacia V4.0\SisFarmacia.exe
"C:\Users\Admin\AppData\Local\Temp\Instalador SisFarmacia V4.0\SisFarmacia.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\is-136L1.tmp\SisFarmacia.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-136L1.tmp\SisFarmacia.tmp" /SL5="$101B8,26858922,797184,C:\Users\Admin\AppData\Local\Temp\Instalador SisFarmacia V4.0\SisFarmacia.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:276
- - C:\Program Files (x86)\SisFarmacia\SisFarmacia.exe
    "C:\Program Files (x86)\SisFarmacia\SisFarmacia.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1812
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://java.com/download
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1776
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1776 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1176

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x1fc
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\SisFarmacia\SisFarmacia.exe

Filesize
27.5MB

MD5
174c35ddcc0e16e09e79c1ca9cec8583

SHA1
47f9cc5d3b5359c567656dd18a8b2c49f55e3da5

SHA256
6bfaefce386126e6c9e3ec781a30106cfd7f74e420cbc91f720d9c2c4a28ad0c

SHA512
4d73e5e5b5bee5ca5a6ef3fecc16f87d1dd64e40730772572f4befe4653c7277350c00b0649a9096f5ef877da3bd25d706a326e7d3b9a24defe8fe37be481031

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-136L1.tmp\SisFarmacia.tmp

Filesize
2.5MB

MD5
27468e29378f0528abb039cd242b99a9

SHA1
b8c088508ff39708c1048b6fc64106339a8c5c52

SHA256
14e7028ed14eed990ef349ddcd991fe53c37416307b05e6cdc0c2eebeb8f6734

SHA512
1cc62d4c28cacc120c0bfd7ebc80432f6b17f2b0d4d9d51ebb2122e265138f42cd14ddc2992bb9c863cc2207f0c02abb7e2900aee5a4f08b971801078c3fb827

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-136L1.tmp\SisFarmacia.tmp

Filesize
2.5MB

MD5
27468e29378f0528abb039cd242b99a9

SHA1
b8c088508ff39708c1048b6fc64106339a8c5c52

SHA256
14e7028ed14eed990ef349ddcd991fe53c37416307b05e6cdc0c2eebeb8f6734

SHA512
1cc62d4c28cacc120c0bfd7ebc80432f6b17f2b0d4d9d51ebb2122e265138f42cd14ddc2992bb9c863cc2207f0c02abb7e2900aee5a4f08b971801078c3fb827

Download Submit
\Program Files (x86)\SisFarmacia\SisFarmacia.exe

Filesize
27.5MB

MD5
174c35ddcc0e16e09e79c1ca9cec8583

SHA1
47f9cc5d3b5359c567656dd18a8b2c49f55e3da5

SHA256
6bfaefce386126e6c9e3ec781a30106cfd7f74e420cbc91f720d9c2c4a28ad0c

SHA512
4d73e5e5b5bee5ca5a6ef3fecc16f87d1dd64e40730772572f4befe4653c7277350c00b0649a9096f5ef877da3bd25d706a326e7d3b9a24defe8fe37be481031

Download Submit
\Users\Admin\AppData\Local\Temp\is-136L1.tmp\SisFarmacia.tmp

Filesize
2.5MB

MD5
27468e29378f0528abb039cd242b99a9

SHA1
b8c088508ff39708c1048b6fc64106339a8c5c52

SHA256
14e7028ed14eed990ef349ddcd991fe53c37416307b05e6cdc0c2eebeb8f6734

SHA512
1cc62d4c28cacc120c0bfd7ebc80432f6b17f2b0d4d9d51ebb2122e265138f42cd14ddc2992bb9c863cc2207f0c02abb7e2900aee5a4f08b971801078c3fb827

Download Submit
memory/276-62-0x0000000074311000-0x0000000074313000-memory.dmp

Filesize
8KB

Download
memory/2008-54-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download
memory/2008-55-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2008-61-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2008-68-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download