4b066e6f81bdb021faaf9e81e9b1e8123b2fc8379843013b26a2e5efed26424c

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 23:18

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General

Target

d75385841ba84180116304a6502b2cfb.exe
Size

686KB
MD5

d75385841ba84180116304a6502b2cfb
SHA1

0e161d341fce830894d6332192805c5e1ad817e7
SHA256

4b066e6f81bdb021faaf9e81e9b1e8123b2fc8379843013b26a2e5efed26424c
SHA512

54dcdea62c09bc9d19c964883eac79d3f127df97f775cef003ea8858be2a163fde65c70d6c791dddf7614cf3e20c5b430b02c84a45361fc1b7e16edd476fbb5c
SSDEEP

12288:fvaoCaey4G1UQlVFDQqIvsV1X1tolMeihq7fSk3kdcbCa:fvaoeG1UQa8Lp030cbp

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000d000000023149-4.dat	acprotect
behavioral2/files/0x000900000002320e-45.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
4344	Dzsevzezr.exe

Loads dropped DLL 6 IoCs

pid	Process
2348	d75385841ba84180116304a6502b2cfb.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
2348	d75385841ba84180116304a6502b2cfb.exe
2348	d75385841ba84180116304a6502b2cfb.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000d000000023149-4.dat	upx
behavioral2/memory/2348-7-0x0000000010000000-0x0000000010129000-memory.dmp	upx
behavioral2/memory/4344-21-0x0000000010000000-0x0000000010129000-memory.dmp	upx
behavioral2/memory/2348-37-0x0000000010000000-0x0000000010129000-memory.dmp	upx
behavioral2/files/0x000900000002320e-45.dat	upx
behavioral2/memory/4344-48-0x0000000010000000-0x0000000010129000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Dzsevzezr.exe	d75385841ba84180116304a6502b2cfb.exe
File created	C:\Program Files (x86)\Dzsevzezr.dll	Dzsevzezr.exe
File opened for modification	C:\Program Files (x86)\Dzsevzezr.dll	Dzsevzezr.exe
File created	C:\Program Files (x86)\Dzsevzezr.exe	d75385841ba84180116304a6502b2cfb.exe

Modifies Internet Explorer Automatic Crash Recovery 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AutoRecover = "2"	Dzsevzezr.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3759886940"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3760512191"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31095379"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0A5F39C9-E647-11EE-AE4D-5E2396FD2BC6} = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AutoRecover = "2"	Dzsevzezr.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3759886940"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3760512191"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417655303"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31095379"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "NO"	Dzsevzezr.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31095379"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31095379"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2348	d75385841ba84180116304a6502b2cfb.exe
2348	d75385841ba84180116304a6502b2cfb.exe
2348	d75385841ba84180116304a6502b2cfb.exe
2348	d75385841ba84180116304a6502b2cfb.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2608	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2348	d75385841ba84180116304a6502b2cfb.exe
2348	d75385841ba84180116304a6502b2cfb.exe
4344	Dzsevzezr.exe
4344	Dzsevzezr.exe
2608	IEXPLORE.EXE
2608	IEXPLORE.EXE
4456	IEXPLORE.EXE
4456	IEXPLORE.EXE
4456	IEXPLORE.EXE
4456	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 4344	2348	d75385841ba84180116304a6502b2cfb.exe	89
PID 2348 wrote to memory of 4344	2348	d75385841ba84180116304a6502b2cfb.exe	89
PID 2348 wrote to memory of 4344	2348	d75385841ba84180116304a6502b2cfb.exe	89
PID 4344 wrote to memory of 2608	4344	Dzsevzezr.exe	93
PID 4344 wrote to memory of 2608	4344	Dzsevzezr.exe	93
PID 2608 wrote to memory of 4456	2608	IEXPLORE.EXE	94
PID 2608 wrote to memory of 4456	2608	IEXPLORE.EXE	94
PID 2608 wrote to memory of 4456	2608	IEXPLORE.EXE	94
PID 2348 wrote to memory of 4072	2348	d75385841ba84180116304a6502b2cfb.exe	95
PID 2348 wrote to memory of 4072	2348	d75385841ba84180116304a6502b2cfb.exe	95
PID 2348 wrote to memory of 4072	2348	d75385841ba84180116304a6502b2cfb.exe	95
PID 4344 wrote to memory of 2608	4344	Dzsevzezr.exe	93

C:\Users\Admin\AppData\Local\Temp\d75385841ba84180116304a6502b2cfb.exe
"C:\Users\Admin\AppData\Local\Temp\d75385841ba84180116304a6502b2cfb.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Program Files (x86)\Dzsevzezr.exe
  "C:\Program Files (x86)\Dzsevzezr.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Modifies Internet Explorer Automatic Crash Recovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE" -nohome
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2608
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2608 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4456
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""c:\d75385841ba84180116304a6502b2cfb.exe_And xMe.bat""
  2⤵
  PID:4072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
7.2MB

MD5
da7712448735d8ca327feb077b1122ca

SHA1
e987a01277166ad89ff00e72e4bd0c4fe7c30276

SHA256
a049c2e38474b3de0cb34aa8d172dbafef4975003937e33c59757ce54e8748a5

SHA512
641011851f42f0abaf0df702ab1a84c7c7dbbcfa6f96426c2909643274560088edaa272ceb74ebcf1e0891743b6e76f805a46471335a8407f6bbb35e95774703

Download Submit
C:\Program Files (x86)\Dzsevzezr.exe

Filesize
7.0MB

MD5
34ee369de6ad128369b9025a088d80e9

SHA1
8fe173d9cc523577efb5cc22695de4221b978fa4

SHA256
fe7ff7906d90c02346d66e4fdc112f9dda9a7f3e6db78836ea4fe0978b88e1f4

SHA512
2db4ee40fdd427a856118b2887f43163a008353616e6115bfae125de5d4170da003e9d358f5fd7c51f233cfc5e5d53ebaf91297070ca096551c990c33b509f64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verB621.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2ZG7H8ZF\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\BClib\krnln.fnr

Filesize
229KB

MD5
4053d89a64dc6557ae0de8fa87cb0364

SHA1
cf8dbec441a06b8ee53dbbc3b1ac80b80239959a

SHA256
cb7705b493658b56505932e0b6543d674851f19f8141c5b1f5d38cc2388d954a

SHA512
c80f1451875bb76dc11064cb303ba0548c20766171270d44c16ff91b8dfa13721a5d0f5deb3c6de12fa87a942fa526d7bf0e189eb74f20e70c1ba3d06431cc7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\Exmlrpc.fne

Filesize
72KB

MD5
f79ee77a4f30401507e6f54a61598f58

SHA1
7f3ef4945f621ed2880ff5a10a126957b2011a17

SHA256
cf8e29720823eb114fbc3018569a7296ed3e6fcd6c4897f50c5c6e0e98d0b3f8

SHA512
26ccde784b06c46f60fb5a105c806c4d9dc1497fd79d39728fbcfa869d470ca2ba018b0665f3cbc05019fb0766dac2eb1084a6fdce2f9aaaae881beb09dd3739

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\dp1.fne

Filesize
112KB

MD5
6d4b2e73f6f8ecff02f19f7e8ef9a8c7

SHA1
09c32ca167136a17fd69df8c525ea5ffeca6c534

SHA256
fe5783e64aa70fac10c2e42d460732d9770534357329d8bc78576557c165f040

SHA512
2fd7a95cb632e9c4ac6b34e5b6b875aae94e73cd4b1f213e78f46dadab4846227a030776461bca08f9d75a1d61a0d45427f7b0c8b71406b7debc14db04b2ce04

Download Submit
C:\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

Filesize
409KB

MD5
c3d354bdf277263b13dca264ec2add9d

SHA1
b428dfd7df0f6024e22838823cc702e2293bd314

SHA256
ede1e15bb21655495ea3b3fb6710390d53839abeed944ed7ab1af7403b50aa5f

SHA512
24c8e96b3c07fa4e44fbb31a4e09bea728d90d410352aa9c6b6b6165ff5c038f689b7b58b05abc6513fa4ab953b78edc0f9e8298b2d57fe1c26e80068e7ca68e

Download Submit
\??\c:\d75385841ba84180116304a6502b2cfb.exe_And xMe.bat

Filesize
182B

MD5
81f6bbb182df4ddb1193a3c0885f0b24

SHA1
2725fe220a412a68dbe7220a6002c4394c69e709

SHA256
1c96d3b1acf54a5e3de429229c755f3888de85cf961e882513304cf5c6bc9355

SHA512
f6bdb629163d5e28e0e2ee4b3100fc9e3dfe82e8d56ce1e77526c5aa0a8f80d3cb4d8485a22e2c3aee7a8a7fb8d60f116fc096f2d2599d026d5f99af60c8f519

Download Submit
memory/2348-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2348-34-0x00000000026D0000-0x00000000026EE000-memory.dmp

Filesize
120KB

Download
memory/2348-37-0x0000000010000000-0x0000000010129000-memory.dmp

Filesize
1.2MB

Download
memory/2348-0-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2348-7-0x0000000010000000-0x0000000010129000-memory.dmp

Filesize
1.2MB

Download
memory/4344-25-0x0000000002490000-0x00000000024AE000-memory.dmp

Filesize
120KB

Download
memory/4344-21-0x0000000010000000-0x0000000010129000-memory.dmp

Filesize
1.2MB

Download
memory/4344-48-0x0000000010000000-0x0000000010129000-memory.dmp

Filesize
1.2MB

Download
memory/4344-49-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4344-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download