6002e3e75c44db4b9e9fffcc89aac18f8d49a1a9f0d7135f90d03adfabbbe532

General

Target

2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Size

500KB
MD5

2fbe268ae1bba3b0c45e5770c908c89d
SHA1

c51d6de1f58ab5d648a18f6b99c90df0d2d1c300
SHA256

6002e3e75c44db4b9e9fffcc89aac18f8d49a1a9f0d7135f90d03adfabbbe532
SHA512

4aa72090779426b6c30bcbfd159cba268b82d863abfac0c06e88a185b41b9e936a4651e5e33b609bbc0887286b49cb1df885a5f541a04abaa61278085e1a27c7
SSDEEP

6144:63OOCKLlcPKJEld2zJQPfuSlMHyaXXu6FQGkcC+V5R5azYBONNYJGxMtFn7y:iOOZpUtlwX+zc7V5Rn1JV7y

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3040	YYMYCU.EXE

Loads dropped DLL 2 IoCs

pid	Process
2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

Modifies system executable filetype association 2 TTPs 3 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Program Files\\GJBG.EXE \"%1\" %*"	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	YYMYCU.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\Run\GJBG.EXE = "C:\\Program Files\\GJBG.EXE"	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

Enumerates connected drives 3 TTPs 17 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\U:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\V:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\E:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\L:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\M:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\Q:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\H:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\J:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\K:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\P:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\N:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\S:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\G:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\I:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\O:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened (read-only)	\??\R:	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/files/0x0007000000016b17-10.dat	upx
behavioral1/files/0x00080000000120ff-20.dat	upx
behavioral1/memory/3040-27-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2380-29-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/3040-30-0x0000000000400000-0x000000000047E000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\GJBG.EXE	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened for modification	C:\Program Files\GJBG.EXE	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\KZSDBHV.EXE	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File created	C:\Windows\UGAHKDU.EXE	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
File opened for modification	C:\Windows\UGAHKDU.EXE	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YYMYCU.EXE

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command\ = "C:\\Program Files\\GJBG.EXE %1"	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	YYMYCU.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\UGAHKDU.EXE %1"	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\UGAHKDU.EXE \"%1\""	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "C:\\Windows\\UGAHKDU.EXE \"%1\""	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Program Files\\GJBG.EXE \"%1\" %*"	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3040	YYMYCU.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 3040	2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe	30
PID 2380 wrote to memory of 3040	2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe	30
PID 2380 wrote to memory of 3040	2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe	30
PID 2380 wrote to memory of 3040	2380	2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2fbe268ae1bba3b0c45e5770c908c89d_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\YYMYCU.EXE
  C:\Users\YYMYCU.EXE
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\UGAHKDU.EXE

Filesize
501KB

MD5
4d28a6dad83a38c1e137cbe076207bb0

SHA1
6646ace1538d096288142dc23778a439d20e82a2

SHA256
23a4f1d700ea1539fb55128469944d4861fe926d7da2e6f43b53808eeaad84ae

SHA512
15c3946a58c8aea92b497b07e21c49a943a8a21aae346d37568fa13835820a96e4a216e5451be5d08bcd277c928e1a884334f656a47d0d4f8c0072a9444df81c

Download Submit
C:\filedebug

Filesize
222B

MD5
1362f4ad630c832d5646bcc06a60ff31

SHA1
2cf4ed4d125bfc55e8c67d3f2087c6187bcb5acd

SHA256
ad5e5a5fe94e6a1d65ad31e07c787115b341426cb0bcc100a078ffe99b7a46a5

SHA512
55c041be5662be847f3cdb7f6ba9eae3ddb87c7337bfd1adacb82f6c1275dbee5b3094f02dd11a25251d87be0ad847e10d60c215a5aacc65e84b36803e8b3c84

Download Submit
\Users\YYMYCU.EXE

Filesize
500KB

MD5
4163586ff9748140b734ad3755b599d1

SHA1
83214a850a607fd0d5213cf7bc0d00377c0aca93

SHA256
dbaf149742747b2bc3aa4ecf22356aeeb95621f6d7dd49d66a417dab2b8356ef

SHA512
f78681ac47e6a446bf1a7f545b4c93c0dbcdf019432fb6c754542176945af7bc6a49e74743536808e288fdf4e2bc64f956918b36f09d742a066d84cde0f73229

Download Submit
memory/2380-0-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2380-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2380-29-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3040-27-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3040-28-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/3040-30-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads