39f2de7559be9bbe9d658d31bd59ff24f0d2b339392cbeef0bd3b7c7da24100e

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2024, 23:48

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General

Target

59b9e44a7d7885a723c71a78a362edf5.exe
Size

35KB
MD5

59b9e44a7d7885a723c71a78a362edf5
SHA1

19b4706f57bf8bf20d26b11682aef58aad522aa3
SHA256

39f2de7559be9bbe9d658d31bd59ff24f0d2b339392cbeef0bd3b7c7da24100e
SHA512

36b140ce8f2a5b75768bf0f3acbb837fa4a17958ca86f7ab5000da717df2cc46f30dfa973251b9ba3aeff9001506b06f09401b0394ce8c149643227c4eadffec
SSDEEP

768:CXNlj0yT2iXWza/fjqUjIg94qQtkVMCnO8yE+k/YLwazqbWY:Y10IjvIg9fQtkCCnO1k/YLET

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	59b9e44a7d7885a723c71a78a362edf5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\nmzy_df = "C:\\Windows\\system\\zyndle081101.exe"	59b9e44a7d7885a723c71a78a362edf5.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	59b9e44a7d7885a723c71a78a362edf5.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\zyndle081101.exe	59b9e44a7d7885a723c71a78a362edf5.exe
File created	C:\Windows\system\zyndld32081101.dll	59b9e44a7d7885a723c71a78a362edf5.exe
File created	C:\Windows\system\zyndld32081101jt.dll	59b9e44a7d7885a723c71a78a362edf5.exe
File created	C:\Windows\system\zyndle081101.exe	59b9e44a7d7885a723c71a78a362edf5.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31082107"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31082107"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "743351612"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "no"	59b9e44a7d7885a723c71a78a362edf5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\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
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{558C483C-B26E-11EE-B6AD-EAB06C7B55B6} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31082107"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "734445901"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411954723"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "734445901"	iexplore.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3264	PING.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe
4116	59b9e44a7d7885a723c71a78a362edf5.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4116	59b9e44a7d7885a723c71a78a362edf5.exe
Token: SeDebugPrivilege	4116	59b9e44a7d7885a723c71a78a362edf5.exe
Token: SeDebugPrivilege	4116	59b9e44a7d7885a723c71a78a362edf5.exe
Token: SeDebugPrivilege	4116	59b9e44a7d7885a723c71a78a362edf5.exe
Token: SeDebugPrivilege	4116	59b9e44a7d7885a723c71a78a362edf5.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4016	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4016	iexplore.exe
4016	iexplore.exe
1616	IEXPLORE.EXE
1616	IEXPLORE.EXE
1616	IEXPLORE.EXE
1616	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 4016	4116	59b9e44a7d7885a723c71a78a362edf5.exe	100
PID 4116 wrote to memory of 4016	4116	59b9e44a7d7885a723c71a78a362edf5.exe	100
PID 4016 wrote to memory of 1616	4016	iexplore.exe	101
PID 4016 wrote to memory of 1616	4016	iexplore.exe	101
PID 4016 wrote to memory of 1616	4016	iexplore.exe	101
PID 4116 wrote to memory of 4016	4116	59b9e44a7d7885a723c71a78a362edf5.exe	100
PID 4116 wrote to memory of 3444	4116	59b9e44a7d7885a723c71a78a362edf5.exe	45
PID 4116 wrote to memory of 1808	4116	59b9e44a7d7885a723c71a78a362edf5.exe	104
PID 4116 wrote to memory of 1808	4116	59b9e44a7d7885a723c71a78a362edf5.exe	104
PID 4116 wrote to memory of 1808	4116	59b9e44a7d7885a723c71a78a362edf5.exe	104
PID 1808 wrote to memory of 3264	1808	cmd.exe	106
PID 1808 wrote to memory of 3264	1808	cmd.exe	106
PID 1808 wrote to memory of 3264	1808	cmd.exe	106

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3444
- C:\Users\Admin\AppData\Local\Temp\59b9e44a7d7885a723c71a78a362edf5.exe
  "C:\Users\Admin\AppData\Local\Temp\59b9e44a7d7885a723c71a78a362edf5.exe"
  2⤵
  - Adds policy Run key to start application
  - Checks computer location settings
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\program files\internet explorer\iexplore.exe
    "C:\program files\internet explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4016
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4016 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1616
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\dfDelmlljy.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1808
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L3T8W3B4\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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C:\dfDelmlljy.bat

Filesize
205B

MD5
7a0d10ee7eebd0a301cf2628db9b5833

SHA1
4d2c997ecfe1ee903d830ce544dfed9e79a4ca80

SHA256
4e0b7249591ec2f1d3a1f7149e16ec1762d697ac68e74392fd71ef8d6289d440

SHA512
e7fd8dfd86656b26bff260d617cece7479a38f33fb92fba893933f6a1921378fa143a2e6dee5aaa0dc35059f276dca9b63a87e9efa3311468c7dac44002dfafc

Download Submit