c6859189c1a543044eead81c3165b647650c8d8b59daaf59c68c3a54238f0e9b

General

Target

fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe
Size

860KB
MD5

fc236b06b1e086a4aa4d809a95cc90db
SHA1

5ca354e16c9442c096236d9a071764af90590083
SHA256

c6859189c1a543044eead81c3165b647650c8d8b59daaf59c68c3a54238f0e9b
SHA512

0cbf49d85f4549d69dd21e059fff25ce0e9bc94a22d53de8ab2385b22fa14a8b1f09ea8b7346329e23d13c34540eaa4310f1b166191c44875919b8d15d78fa30
SSDEEP

24576:r2FinwXSPtxxo/nwBMieNDmh9MGmzjZnjJIexOL1TNkdBAnZyauvw:iFBSPtOn2Zfh9MGmzjZnjJIexOLLkUEU

Score

9^/10

discovery persistence upx

Malware Config

Signatures

Detected Nirsoft tools 1 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2768-10-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

pid	Process
2768	winhlp1_1.exe

Loads dropped DLL 2 IoCs

pid	Process
2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe
2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.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\winhlp = "C:\\Windows\\winhlp.exe"	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a000000012250-3.dat	upx
behavioral1/memory/2768-10-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winhlp.exe	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe
File opened for modification	C:\Windows\winhlp.exe	fc236b06b1e086a4aa4d809a95cc90db_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	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winhlp1_1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2768	2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe	29
PID 2888 wrote to memory of 2768	2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe	29
PID 2888 wrote to memory of 2768	2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe	29
PID 2888 wrote to memory of 2768	2888	fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc236b06b1e086a4aa4d809a95cc90db_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\winhlp1_1.exe
  C:\Users\Admin\AppData\Local\Temp\winhlp1_1.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\win1_1.txt
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2768

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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:\Users\Admin\AppData\Local\Temp\Cab1096.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar10D7.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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C:\Users\Admin\AppData\Local\Temp\win1_1.txt

Filesize
31B

MD5
b7161c0845a64ff6d7345b67ff97f3b0

SHA1
d223f855da541fe8e4c1d5c50cb26da0a1deb5fc

SHA256
fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66

SHA512
98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680

Download Submit
\Users\Admin\AppData\Local\Temp\winhlp1_1.exe

Filesize
184KB

MD5
7fee8223d6e4f82d6cd115a28f0b6d58

SHA1
1b89c25f25253df23426bd9ff6c9208f1202f58b

SHA256
a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

SHA512
3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

Download Submit
memory/2768-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2888-12-0x0000000000210000-0x000000000026B000-memory.dmp

Filesize
364KB

Download
memory/2888-11-0x0000000000210000-0x000000000026B000-memory.dmp

Filesize
364KB

Download
memory/2888-49-0x0000000000210000-0x000000000026B000-memory.dmp

Filesize
364KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads