dccca60d7f67e773dce519de7e535f95880d08c6692966693592467fdfedc72b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 06:08

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General

Target

a1234afaf3fec88126e282ddb4ccb052.exe
Size

687KB
MD5

a1234afaf3fec88126e282ddb4ccb052
SHA1

8c00e0df60feec0254a54cd0edb4327cdac2cdb8
SHA256

dccca60d7f67e773dce519de7e535f95880d08c6692966693592467fdfedc72b
SHA512

c0ecb2ff756225c446f34abb45503ecd52547dc63da42db5229f759fb30001fa42b1c7a877740fe23095fa0b6e367f6cbc38f34d53d9de20b328d4e70b3479e3
SSDEEP

12288:rKqI/NVA4LuX1rTcMYWnXUOC+0b4ZCOh+F3Z4mxxODRw2RaeoWgxRBuMr:rZI/NulfXYeU/Tc0Oh+QmX8RwaaeqTxr

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2556	4.exe
2988	server.exe

Loads dropped DLL 2 IoCs

pid	Process
2932	a1234afaf3fec88126e282ddb4ccb052.exe
2932	a1234afaf3fec88126e282ddb4ccb052.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	a1234afaf3fec88126e282ddb4ccb052.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	server.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\uninstal.bat	4.exe
File created	C:\Windows\server.exe	4.exe
File opened for modification	C:\Windows\server.exe	4.exe

Modifies data under HKEY_USERS 28 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12\WpadDecisionTime = 80807cdfe766da01	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12\WpadDecision = "0"	server.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	server.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\WpadDecisionTime = 80807cdfe766da01	server.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12\WpadDetectedUrl	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0136000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	server.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	server.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\02-f7-83-59-d2-12	server.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	server.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\WpadDecisionReason = "1"	server.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12	server.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0136000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	server.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	server.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\WpadNetworkName = "Network 3"	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12\WpadDecisionReason = "1"	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f7-83-59-d2-12\WpadDecisionTime = a0a6d91de866da01	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	server.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\WpadDecisionTime = a0a6d91de866da01	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3236FCB5-E1D7-417B-9E2D-60D2DE445119}\WpadDecision = "0"	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	server.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	server.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	server.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	server.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	4.exe
Token: SeDebugPrivilege	2988	server.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2988	server.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2556	2932	a1234afaf3fec88126e282ddb4ccb052.exe	28
PID 2932 wrote to memory of 2556	2932	a1234afaf3fec88126e282ddb4ccb052.exe	28
PID 2932 wrote to memory of 2556	2932	a1234afaf3fec88126e282ddb4ccb052.exe	28
PID 2932 wrote to memory of 2556	2932	a1234afaf3fec88126e282ddb4ccb052.exe	28
PID 2988 wrote to memory of 2644	2988	server.exe	30
PID 2988 wrote to memory of 2644	2988	server.exe	30
PID 2988 wrote to memory of 2644	2988	server.exe	30
PID 2988 wrote to memory of 2644	2988	server.exe	30
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31
PID 2556 wrote to memory of 2456	2556	4.exe	31

C:\Users\Admin\AppData\Local\Temp\a1234afaf3fec88126e282ddb4ccb052.exe
"C:\Users\Admin\AppData\Local\Temp\a1234afaf3fec88126e282ddb4ccb052.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Windows\uninstal.bat
    3⤵
    PID:2456

C:\Windows\server.exe
C:\Windows\server.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:2644

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\uninstal.bat

Filesize
150B

MD5
5edd682a8b1f2bf873300774f954ab03

SHA1
2cca4e743d02dbccf31b784ea26a60c03dcc9637

SHA256
a34c51ec5d2ac66ef75719e7dee61b6e89e74d054712438da2585ec92ce0865a

SHA512
916f0e846a38f63aae996e2a3957fa24fed3bcaa6add68c529e3cc0aa063dca49b98d42c92317bfc2f43d745c492e1e1e6f5db0c986b9682f4b9b0cf0afd7bd2

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

Filesize
775KB

MD5
dae06df43424b36cb828a7f6e7ff5f6a

SHA1
c29eb9c664b0370a98869b6380f8777ac0018c05

SHA256
4a08e89e44a7c7f333f5716120a3cb0fa8f14ae3559adc8f1bd7eadcc0ac5d63

SHA512
9648ca7578133a5ee62666426a1c53b5a20ac59f9f204d826b6bce2df46a4340086ac259ab6b9d096c633f32af840ced3dfb3bb6029984095ff9762a302cc300

Download Submit
memory/2556-48-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2556-34-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2932-7-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2932-6-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2932-19-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/2932-18-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/2932-17-0x0000000000860000-0x0000000000861000-memory.dmp

Filesize
4KB

Download
memory/2932-16-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download
memory/2932-15-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/2932-14-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/2932-13-0x0000000000840000-0x0000000000841000-memory.dmp

Filesize
4KB

Download
memory/2932-12-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/2932-11-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/2932-10-0x0000000000870000-0x0000000000871000-memory.dmp

Filesize
4KB

Download
memory/2932-9-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/2932-8-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/2932-0-0x0000000001000000-0x0000000001113000-memory.dmp

Filesize
1.1MB

Download
memory/2932-20-0x0000000000A20000-0x0000000000A21000-memory.dmp

Filesize
4KB

Download
memory/2932-5-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2932-4-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2932-3-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2932-2-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2932-24-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2932-21-0x0000000000A10000-0x0000000000A11000-memory.dmp

Filesize
4KB

Download
memory/2932-23-0x0000000000D80000-0x0000000000D81000-memory.dmp

Filesize
4KB

Download
memory/2932-50-0x00000000006C0000-0x0000000000714000-memory.dmp

Filesize
336KB

Download
memory/2932-22-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/2932-1-0x00000000006C0000-0x0000000000714000-memory.dmp

Filesize
336KB

Download
memory/2932-49-0x0000000001000000-0x0000000001113000-memory.dmp

Filesize
1.1MB

Download
memory/2988-40-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2988-52-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2988-53-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2988-54-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2988-58-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads