a079c0b0d88a289f7c7c9871d8e4e941a0a07ce2293e9c780dfb76f89c9e89cd

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 21:43

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General

Target

f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe
Size

93KB
MD5

f6a2538a9382d964e26cfa7d019ccee3
SHA1

8ba6977a0c99071b7fe40d8fdddf38bf79123c9a
SHA256

a079c0b0d88a289f7c7c9871d8e4e941a0a07ce2293e9c780dfb76f89c9e89cd
SHA512

de5720939f85f604d1e851d75638207273bcad1a30485f1996e57ff9c157f4e62f7882f1d7b6bb35bc24ff82af9382d49cf7b2f514231266f942158131f725ea
SSDEEP

1536:SKcR4mjD9r823FT3ceOEhQ2OIxCfryVmLBFqqj3DhYuCSj3:SKcWmjRrz35dVhQ2V0OezjDhHCe

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4672	Yjjx66yZfLIkGo0.exe
2412	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4312-0-0x0000000000C20000-0x0000000000C37000-memory.dmp	upx
behavioral2/memory/2412-8-0x0000000000A60000-0x0000000000A77000-memory.dmp	upx
behavioral2/files/0x00070000000233ce-9.dat	upx
behavioral2/memory/4312-7-0x0000000000C20000-0x0000000000C37000-memory.dmp	upx
behavioral2/files/0x0003000000022973-13.dat	upx
behavioral2/memory/2412-31-0x0000000000A60000-0x0000000000A77000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 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\CTS = "C:\\Windows\\CTS.exe"	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe
Token: SeDebugPrivilege	2412	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 4672	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	84
PID 4312 wrote to memory of 4672	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	84
PID 4312 wrote to memory of 4672	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	84
PID 4312 wrote to memory of 2412	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	85
PID 4312 wrote to memory of 2412	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	85
PID 4312 wrote to memory of 2412	4312	f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6a2538a9382d964e26cfa7d019ccee3_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Users\Admin\AppData\Local\Temp\Yjjx66yZfLIkGo0.exe
  C:\Users\Admin\AppData\Local\Temp\Yjjx66yZfLIkGo0.exe
  2⤵
  - Executes dropped EXE
  PID:4672
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
352KB

MD5
e4b2b68d6e78c081db57158d9ae64b50

SHA1
3ab2cd72de495dd48b9ef275745ccab54e8ad68c

SHA256
964bdf22a4d0d88ef60cf895d2eb29334c88c1bf8f99a22adf4b847379b83d82

SHA512
adc56ce41d33a1cd980a35245e06887ce9df4c16704ce8d3dd72a676925ee3c6e1e2555a8f10a872b1b5c011d395775be934fcbc5423bb106a48084adfef73c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Yjjx66yZfLIkGo0.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2412-8-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download
memory/2412-31-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download
memory/4312-0-0x0000000000C20000-0x0000000000C37000-memory.dmp

Filesize
92KB

Download
memory/4312-7-0x0000000000C20000-0x0000000000C37000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads