a2309ad10ff563fa1cd7eafd4b4f345a72c83e97c742574c6ce2201bcd55c826

General

Target

523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Size

1.5MB
MD5

523ff3878d408b79bf93683ab78a30ed
SHA1

272738e8d795a00f2c0dae712164bb5f80c830b4
SHA256

a2309ad10ff563fa1cd7eafd4b4f345a72c83e97c742574c6ce2201bcd55c826
SHA512

10f2ef25753bd884b4debc4a99211fa656a6259a0bfd44d05a74e0c64896b9b4c040b6f6ee20842f5223433fbbebc5ab500af22045a085b36e379ee9105808a8
SSDEEP

24576:disSzlEqF+hVcO3BhSb8vVFwtLKeukot7slmtVQ0b4iDAWzCLieti:d8l8eO3BhS8vwhKBkodNtnl20

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3060	ramsetup195.exe
748	irsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023c03-7.dat	upx
behavioral2/memory/748-8-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral2/memory/748-23-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ÄÚ´æÉ¨°Ñ Setup Log.txt	irsetup.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ramsetup195.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	irsetup.exe

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\SearchScopes	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{24588FA4-10F1-41D7-B19D-6E22361E47FA}"	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\SearchScopes\{24588FA4-10F1-41D7-B19D-6E22361E47FA}	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{24588FA4-10F1-41D7-B19D-6E22361E47FA}\Codepage = "65001"	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{24588FA4-10F1-41D7-B19D-6E22361E47FA}\DisplayName = "°Ù¶È"	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{24588FA4-10F1-41D7-B19D-6E22361E47FA}\URL = "http://www.baidu.com/s?wd={searchTerms}&tn=site888_1_pg&cl=3&ie=utf-8"	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
748	irsetup.exe
748	irsetup.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 3060	4104	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe	84
PID 4104 wrote to memory of 3060	4104	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe	84
PID 4104 wrote to memory of 3060	4104	523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe	84
PID 3060 wrote to memory of 748	3060	ramsetup195.exe	85
PID 3060 wrote to memory of 748	3060	ramsetup195.exe	85
PID 3060 wrote to memory of 748	3060	ramsetup195.exe	85

C:\Users\Admin\AppData\Local\Temp\523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\523ff3878d408b79bf93683ab78a30ed_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Users\Admin\AppData\Local\Temp\nsa8761.tmp\ramsetup195.exe
  C:\Users\Admin\AppData\Local\Temp\nsa8761.tmp\ramsetup195.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
    __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\nsa8761.tmp\ramsetup195.exe"
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsa8761.tmp\ramsetup195.exe

Filesize
1.4MB

MD5
ff08538cb3d45e33cd82657e4c11d679

SHA1
3f82bf971e5e0d8b08323f6f44e62fad42dd7f38

SHA256
b200bbb9320a0bf96874a2890565b30e3158e42ee0f3e3ae0ec7b7ce41104329

SHA512
cccf86fc6b3d9775f6bd91aa641131623e41d0051be03a7c54d61fb9456d7fb5eb8d0b13ff62ae9cd8260ac767843f8fc9e7da470cc242ce6ccf40bd2a397ca4

Download Submit
memory/748-8-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/748-23-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download

Analysis

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