2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4

General

Target

2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe
Size

172KB
MD5

a08b0a23af1008ad393f62f012173f90
SHA1

2bc46c0ee17b9ecf2bb2740d0447205078c5cfc7
SHA256

2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4
SHA512

6f68eb7699d91af635b7ee3a47ab4656530c385810ee94b0b41aeac51884a21b921349c24289dfca613b004e71fca504db5181222f0001fd428a4a520ae59898
SSDEEP

3072:sNf3wRqQxKvxnsRcaCJL7TURxZPQeQ6DHtsamoBz:8PeyxTtTOZPQRIHrmoB

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/0x00140000000054ab-55.dat	aspack_v212_v242
behavioral1/files/0x00140000000054ab-59.dat	aspack_v212_v242
behavioral1/files/0x0006000000014159-63.dat	aspack_v212_v242
behavioral1/files/0x0007000000014124-72.dat	aspack_v212_v242
behavioral1/files/0x0007000000014124-71.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
1696	18e679c0.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"	18e679c0.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00140000000054ab-55.dat	upx
behavioral1/memory/1696-57-0x0000000000310000-0x0000000000334000-memory.dmp	upx
behavioral1/memory/1696-58-0x0000000000310000-0x0000000000334000-memory.dmp	upx
behavioral1/files/0x00140000000054ab-59.dat	upx
behavioral1/memory/1696-62-0x0000000000310000-0x0000000000334000-memory.dmp	upx
behavioral1/files/0x0006000000014159-63.dat	upx
behavioral1/files/0x0007000000014124-72.dat	upx
behavioral1/memory/1740-77-0x0000000074A80000-0x0000000074AA4000-memory.dmp	upx
behavioral1/memory/1740-75-0x0000000074A80000-0x0000000074AA4000-memory.dmp	upx
behavioral1/memory/1740-74-0x0000000074A80000-0x0000000074AA4000-memory.dmp	upx
behavioral1/files/0x0007000000014124-71.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1696	18e679c0.exe
1740	Svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\14F804F4.tmp	18e679c0.exe
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	18e679c0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1696	18e679c0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 1696	1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe	27
PID 1000 wrote to memory of 1696	1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe	27
PID 1000 wrote to memory of 1696	1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe	27
PID 1000 wrote to memory of 1696	1000	2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe	27

C:\Users\Admin\AppData\Local\Temp\2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe
"C:\Users\Admin\AppData\Local\Temp\2a5468d1db45af7adc59271da2081c56ce2c060ed99af63ab5811303b34e34a4.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1000
- C:\18e679c0.exe
  C:\18e679c0.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:1696

C:\Windows\SysWOW64\Svchost.exe
C:\Windows\SysWOW64\Svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:1740

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

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Downloads

C:\18e679c0.exe

Filesize
81KB

MD5
9df97113d4fb0462ca99208668d6102a

SHA1
2b769b8615735bea0592c73b16ebab7baeedca98

SHA256
9b0fa329aa52f505162bcaeb1bb3ca4ecb1543ec4a9640d7fe8f9fab7668d974

SHA512
c2b9b619f608ec561a81fc5532a47d876f3a4b092babe8d2524c7055ba922f3d85ca9932698b692850d767884e0cdebce39838b5fea9cb6177645c5bb6867a6a

Download Submit
C:\18e679c0.exe

Filesize
81KB

MD5
9df97113d4fb0462ca99208668d6102a

SHA1
2b769b8615735bea0592c73b16ebab7baeedca98

SHA256
9b0fa329aa52f505162bcaeb1bb3ca4ecb1543ec4a9640d7fe8f9fab7668d974

SHA512
c2b9b619f608ec561a81fc5532a47d876f3a4b092babe8d2524c7055ba922f3d85ca9932698b692850d767884e0cdebce39838b5fea9cb6177645c5bb6867a6a

Download Submit
C:\Users\Infotmp.txt

Filesize
720B

MD5
3e6fbfdf2f1e82826bd9cd3b7181c91c

SHA1
18542a580acc188d8cb48b9a713ba86ac19da99a

SHA256
ce8974b45df8cef8e0deae706c257b8dcf2086a78723846ce1bd350a57fde351

SHA512
97c1752816bea3747843d75f587a87020838afb34c95ded645004b5f59867817f6f867becbf6bb6695ad119e46408a5e43867e9bda0049ce70608e4b4d4294da

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

Filesize
81KB

MD5
85b9df4b276647aa1170e21b5ce580a5

SHA1
081d4d7f83660724cbe256401870d7a2310bda12

SHA256
3b282419c0747296c11ea4ba8b92b775378fdb553e60900b61c8902864e7efeb

SHA512
ab0d70323bc470f2620659fa9a790ff1bc21cbbca6a642880414bea303c53feaee8743526005d43ce136ce7812c4cd1f26a843bd9be822341f98d39dc37b20f5

Download Submit
\Windows\SysWOW64\14F804F4.tmp

Filesize
81KB

MD5
85b9df4b276647aa1170e21b5ce580a5

SHA1
081d4d7f83660724cbe256401870d7a2310bda12

SHA256
3b282419c0747296c11ea4ba8b92b775378fdb553e60900b61c8902864e7efeb

SHA512
ab0d70323bc470f2620659fa9a790ff1bc21cbbca6a642880414bea303c53feaee8743526005d43ce136ce7812c4cd1f26a843bd9be822341f98d39dc37b20f5

Download Submit
\Windows\SysWOW64\FastUserSwitchingCompatibility.dll

Filesize
81KB

MD5
85b9df4b276647aa1170e21b5ce580a5

SHA1
081d4d7f83660724cbe256401870d7a2310bda12

SHA256
3b282419c0747296c11ea4ba8b92b775378fdb553e60900b61c8902864e7efeb

SHA512
ab0d70323bc470f2620659fa9a790ff1bc21cbbca6a642880414bea303c53feaee8743526005d43ce136ce7812c4cd1f26a843bd9be822341f98d39dc37b20f5

Download Submit
memory/1000-60-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1000-61-0x0000000000160000-0x0000000000184000-memory.dmp

Filesize
144KB

Download
memory/1000-79-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1000-80-0x0000000000160000-0x0000000000184000-memory.dmp

Filesize
144KB

Download
memory/1696-58-0x0000000000310000-0x0000000000334000-memory.dmp

Filesize
144KB

Download
memory/1696-56-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/1696-66-0x0000000075E60000-0x0000000075EC0000-memory.dmp

Filesize
384KB

Download
memory/1696-67-0x0000000001EC0000-0x0000000005EC0000-memory.dmp

Filesize
64.0MB

Download
memory/1696-68-0x0000000075E60000-0x0000000075EC0000-memory.dmp

Filesize
384KB

Download
memory/1696-64-0x0000000001EC0000-0x0000000005EC0000-memory.dmp

Filesize
64.0MB

Download
memory/1696-78-0x0000000075E60000-0x0000000075EC0000-memory.dmp

Filesize
384KB

Download
memory/1696-65-0x0000000074B30000-0x0000000074B54000-memory.dmp

Filesize
144KB

Download
memory/1696-57-0x0000000000310000-0x0000000000334000-memory.dmp

Filesize
144KB

Download
memory/1696-62-0x0000000000310000-0x0000000000334000-memory.dmp

Filesize
144KB

Download
memory/1740-77-0x0000000074A80000-0x0000000074AA4000-memory.dmp

Filesize
144KB

Download
memory/1740-74-0x0000000074A80000-0x0000000074AA4000-memory.dmp

Filesize
144KB

Download
memory/1740-75-0x0000000074A80000-0x0000000074AA4000-memory.dmp

Filesize
144KB

Download

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