cycbot | b733bbc4c5832102aa384d2d88f5d28e4bf4d7bbbd5842041e24254886417599

General

Target

d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
Size

181KB
MD5

d077f08bd4e96093e2c69b2b55584cb9
SHA1

56d724cf1896c36737c72eded051367d0f9163be
SHA256

b733bbc4c5832102aa384d2d88f5d28e4bf4d7bbbd5842041e24254886417599
SHA512

9ed62d7228431b2dafbb2fc210750991a7981e461f7c286467945ae1ab22043e53603b235e8c45478350f54fd8b15e24dc6e5bdbf98d20f2315ea2343c0f7635
SSDEEP

3072:pKlhX7F8wY65Bh5OQnxLELVHxmnu14h7E1i2zSSodvElh:UXXCJ8BhSGClluMj

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2492-13-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1732-14-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1732-71-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2732-73-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1732-180-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-2-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2492-13-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2492-12-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1732-14-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1732-71-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2732-73-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1732-180-0x0000000000400000-0x0000000000441000-memory.dmp	upx

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	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2492	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2492	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2492	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2492	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2732	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	32
PID 1732 wrote to memory of 2732	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	32
PID 1732 wrote to memory of 2732	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	32
PID 1732 wrote to memory of 2732	1732	d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d077f08bd4e96093e2c69b2b55584cb9_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\CFA4.DC3

Filesize
1KB

MD5
19ec72c7c70b31d82be64efebf64365a

SHA1
2ab2f73215b3fc3ebe6396da97cc119d92a77cb2

SHA256
8730aa23f1d63fb7457db90ac144c3911dc6955b4469a0d8071530bda03e6c77

SHA512
2b010c664ffa327d3af83a4c8f620bc733fa3de5c7bc163b347737a57f31ce9561554d9744beaaa0aafd58f6875b53ea4d6ce7214aa12d1e5e52d19fd70c44f6

Download Submit
C:\Users\Admin\AppData\Roaming\CFA4.DC3

Filesize
600B

MD5
79813d8180a1876401bb86fd7ed5a7af

SHA1
f740a27c38314038f4dc8f9f5a5875eacaa47d8f

SHA256
a1fc0699fe378b2d50a91a3d313f9326abc7c4d5ceb2cf0a54bc42bf7847e96c

SHA512
29bb62090e5505f87eddd1a1771095ee31af81ea23a6f27c4514ce3f13aca86c942e5c66cc51b712f5d14070a06da3ec58dee6e406e6d8cc17efd2fe25ca4674

Download Submit
C:\Users\Admin\AppData\Roaming\CFA4.DC3

Filesize
996B

MD5
129a9753a1323f6f58fde4d0e3c19c8f

SHA1
31a4c20b270a8e808d4821d3c911e7a2ad63d09d

SHA256
31ea6f80c9da038fc71db1c07b94fe57962630634c470617c8dde45b825aceca

SHA512
5442ba69e307a64789057e98360a551f616c0ce171c9a1912491cd27ae3a8ba2cf0d6bfb05f56e30bf5b0871358ede0127b5c7f09c0eabd2c9fc334f20f5f765

Download Submit
memory/1732-1-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1732-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1732-14-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1732-71-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1732-180-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2492-13-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2492-12-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2732-73-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads