cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf

General

Target

cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe
Size

2.7MB
MD5

910a5a54bf188c19ba038d075f71f9f2
SHA1

8ad6d793cad967c101a95fa9d1b9256e9b75f17e
SHA256

cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf
SHA512

fa1a172cc36c24237ff4e4ce581e2acff1c703a21dcfe7c2ae27fd1b059ca9414d5bc2137495b062eee373926d1832894832edecb83dd4d750693f2f8a92cb69
SSDEEP

24576:Jqctu0iZ/IG4qZVMAtbw7mywkjpCalWJcU4gHHHicwQgNxujv:JcZei+Adw7vVjwalWJcUzHHHic

Score

8^/10

aspackv2 persistence upx

Malware Config

Signatures

ASPack v2.12-2.42 5 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0007000000005c50-57.dat	aspack_v212_v242
behavioral1/files/0x0007000000005c50-64.dat	aspack_v212_v242
behavioral1/files/0x00090000000122cc-65.dat	aspack_v212_v242
behavioral1/files/0x00090000000122d0-69.dat	aspack_v212_v242
behavioral1/files/0x00090000000122d0-70.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
956	160e774a.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibility.dll"	160e774a.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-57.dat	upx
behavioral1/memory/956-60-0x0000000001100000-0x0000000001147000-memory.dmp	upx
behavioral1/memory/956-63-0x0000000001100000-0x0000000001147000-memory.dmp	upx
behavioral1/memory/956-62-0x0000000001100000-0x0000000001147000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-64.dat	upx
behavioral1/files/0x00090000000122cc-65.dat	upx
behavioral1/memory/956-67-0x0000000076AC0000-0x0000000076B20000-memory.dmp	upx
behavioral1/files/0x00090000000122d0-69.dat	upx
behavioral1/files/0x00090000000122d0-70.dat	upx
behavioral1/memory/732-72-0x0000000074CB0000-0x0000000074CF7000-memory.dmp	upx
behavioral1/memory/732-73-0x0000000074CB0000-0x0000000074CF7000-memory.dmp	upx
behavioral1/memory/732-76-0x0000000074CB0000-0x0000000074CF7000-memory.dmp	upx
behavioral1/memory/956-75-0x0000000001100000-0x0000000001147000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
956	160e774a.exe
732	Svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\12850548.tmp	160e774a.exe
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	160e774a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
956	160e774a.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe
836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe
836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 956	836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe	27
PID 836 wrote to memory of 956	836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe	27
PID 836 wrote to memory of 956	836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe	27
PID 836 wrote to memory of 956	836	cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe	27

C:\Users\Admin\AppData\Local\Temp\cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe
"C:\Users\Admin\AppData\Local\Temp\cea675add5989ca25e1453ea369fc7ca3a5a446d24f4989cea777584633e49cf.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:836
- C:\160e774a.exe
  C:\160e774a.exe
  2⤵
  - Executes dropped EXE
  - Sets DLL path for service in the registry
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  PID:956

C:\Windows\SysWOW64\Svchost.exe
C:\Windows\SysWOW64\Svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:732

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\160e774a.exe

Filesize
221KB

MD5
b3d1699bac5f4682cda6ca7676f8d333

SHA1
009fae507bc8b45b2a6e4f6e3753f60c96d3d692

SHA256
62e55bf4c88ceb6ca6ac53a2b3be0144c8939b4d576676f00182ef8bd5117218

SHA512
1a22e86d20b3f0cdae51bdef481caf3c83d1c5650c8566efef0bee941b5c4ddaf9d73d60b615de381c7d2e68a96cb118112898afb111ac41b68380a8ecffd571

Download Submit
C:\160e774a.exe

Filesize
221KB

MD5
b3d1699bac5f4682cda6ca7676f8d333

SHA1
009fae507bc8b45b2a6e4f6e3753f60c96d3d692

SHA256
62e55bf4c88ceb6ca6ac53a2b3be0144c8939b4d576676f00182ef8bd5117218

SHA512
1a22e86d20b3f0cdae51bdef481caf3c83d1c5650c8566efef0bee941b5c4ddaf9d73d60b615de381c7d2e68a96cb118112898afb111ac41b68380a8ecffd571

Download Submit
C:\Users\Infotmp.txt

Filesize
724B

MD5
5a2ea1253b0af492db6f54620ac56fff

SHA1
52477fb82216c4a8b1c171e159a3b441ce2b7393

SHA256
66006bb9d7fb131798d96f4257c0c6ae9a83b30abfcce428d46b013d4ac37a48

SHA512
ec523618484735a429308885ef7b43e14600a43389f7abd6a05e9a02cdb3ac3d10ef4658b13782238068d6209ac93f1cc8830bfdc1a5f45392a43ddf08952a4b

Download Submit
\??\c:\windows\SysWOW64\fastuserswitchingcompatibility.dll

Filesize
221KB

MD5
0669d63a75b1858b346fc2e650ab3e48

SHA1
52529e1ebebdd2d3c447f6044f64639e517d9ef4

SHA256
e74d7fd196f966eb88d82c5396181e0c7e159080a173bc69d207ee3a24d4728e

SHA512
af0d747f01a91a09f21e4b68258f6f285fd502f2b021dc25574a343a20f3a1abd0b1a86129385a4d9eada81808ea32ed9718c606ad002721a1b96b31c38a39c8

Download Submit
\Windows\SysWOW64\12850548.tmp

Filesize
221KB

MD5
0669d63a75b1858b346fc2e650ab3e48

SHA1
52529e1ebebdd2d3c447f6044f64639e517d9ef4

SHA256
e74d7fd196f966eb88d82c5396181e0c7e159080a173bc69d207ee3a24d4728e

SHA512
af0d747f01a91a09f21e4b68258f6f285fd502f2b021dc25574a343a20f3a1abd0b1a86129385a4d9eada81808ea32ed9718c606ad002721a1b96b31c38a39c8

Download Submit
\Windows\SysWOW64\FastUserSwitchingCompatibility.dll

Filesize
221KB

MD5
0669d63a75b1858b346fc2e650ab3e48

SHA1
52529e1ebebdd2d3c447f6044f64639e517d9ef4

SHA256
e74d7fd196f966eb88d82c5396181e0c7e159080a173bc69d207ee3a24d4728e

SHA512
af0d747f01a91a09f21e4b68258f6f285fd502f2b021dc25574a343a20f3a1abd0b1a86129385a4d9eada81808ea32ed9718c606ad002721a1b96b31c38a39c8

Download Submit
memory/732-72-0x0000000074CB0000-0x0000000074CF7000-memory.dmp

Filesize
284KB

Download
memory/732-76-0x0000000074CB0000-0x0000000074CF7000-memory.dmp

Filesize
284KB

Download
memory/732-73-0x0000000074CB0000-0x0000000074CF7000-memory.dmp

Filesize
284KB

Download
memory/836-55-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

Filesize
8KB

Download
memory/836-54-0x0000000000400000-0x00000000006B0000-memory.dmp

Filesize
2.7MB

Download
memory/836-78-0x0000000000400000-0x00000000006B0000-memory.dmp

Filesize
2.7MB

Download
memory/836-59-0x0000000000310000-0x0000000000357000-memory.dmp

Filesize
284KB

Download
memory/836-58-0x0000000000310000-0x0000000000357000-memory.dmp

Filesize
284KB

Download
memory/956-68-0x0000000074CC0000-0x0000000074D07000-memory.dmp

Filesize
284KB

Download
memory/956-67-0x0000000076AC0000-0x0000000076B20000-memory.dmp

Filesize
384KB

Download
memory/956-62-0x0000000001100000-0x0000000001147000-memory.dmp

Filesize
284KB

Download
memory/956-60-0x0000000001100000-0x0000000001147000-memory.dmp

Filesize
284KB

Download
memory/956-63-0x0000000001100000-0x0000000001147000-memory.dmp

Filesize
284KB

Download
memory/956-77-0x0000000076AC0000-0x0000000076B20000-memory.dmp

Filesize
384KB

Download
memory/956-75-0x0000000001100000-0x0000000001147000-memory.dmp

Filesize
284KB

Download
memory/956-66-0x0000000002550000-0x0000000006550000-memory.dmp

Filesize
64.0MB

Download

Analysis

Sharing