cycbot | b685112151dac91b905e135bc7013f4f3a0b864bc0ea1f21e40007f749474384

General

Target

e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
Size

174KB
MD5

e1cfabd400713b2926a8217f5c63e830
SHA1

f6e820e18302bd03d019d666ccbebfc047e854de
SHA256

b685112151dac91b905e135bc7013f4f3a0b864bc0ea1f21e40007f749474384
SHA512

cdacf68e5e1c681ddc367c6afec58725ebec5a6158536d16a669192e2aacb17424b1ec0ac2cc26c53416d58a628547fd206cd171e246f2edcfc6351c9908fb00
SSDEEP

3072:V+XGV3JIxczDgznrwD5UTVCmif0J6L3/bhwoyjsdwU1dwG2zFv8BPlaXd:V+WVZIxczDGEDSTpJ6L3+0SxSPl2

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/2052-9-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2012-15-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2012-82-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/1740-86-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2012-207-0x0000000000400000-0x0000000000444000-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"	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2012-1-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2052-9-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2012-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2012-82-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1740-85-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1740-86-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2012-207-0x0000000000400000-0x0000000000444000-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	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2052	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	31
PID 2012 wrote to memory of 2052	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	31
PID 2012 wrote to memory of 2052	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	31
PID 2012 wrote to memory of 2052	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	31
PID 2012 wrote to memory of 1740	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	33
PID 2012 wrote to memory of 1740	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	33
PID 2012 wrote to memory of 1740	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	33
PID 2012 wrote to memory of 1740	2012	e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e1cfabd400713b2926a8217f5c63e830_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1740

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

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Downloads

C:\Users\Admin\AppData\Roaming\F4AA.5B0

Filesize
1KB

MD5
68eeb231a405b046ae73fdee6682d498

SHA1
d057dbe515203a72c57ebadc15865289ff5554d6

SHA256
d66d01d9c9973b28219902c13243da9964964c8efdde105ebb63963a87bcc065

SHA512
b36c5de856f27fedf39e0f269d40d61d0aca26adc62fd2dc73f51e10ede8e76c32c4cd4923a03cb821419247d2cfc03a10604c9331a9a6b3828d6b1d05b53259

Download Submit
C:\Users\Admin\AppData\Roaming\F4AA.5B0

Filesize
600B

MD5
8261d54184f73a0e08bbee75bcbbbf25

SHA1
f3c8feb8c7f02a53f2f65a80319e3a2cd6f550d8

SHA256
dfc75ceaa348a30ab8c06811e9495e54e0599f691ba0363d1f6eccd6616b2f86

SHA512
ffc61357d4212662336dc591f8607dd59a6d470741fc9e4fa1ad23203221309aac5ad4d1d88f830dcb98239cb8437c7f3ccf0a046d6599f8a8af6e3814a3e23d

Download Submit
C:\Users\Admin\AppData\Roaming\F4AA.5B0

Filesize
996B

MD5
8439ebdc023c926f0437eb6966a13a72

SHA1
bccf4d9eda1316269ca3e0570228c692fa56cbaa

SHA256
ebd5a0e1e5cde779822f2a2e4f26da17709f2c7f08f61715b2a83e8c83a9059c

SHA512
1789fd6bf1e37d87c4b705fe9fc5c638d2516981ada5099a4e56b0cacd3332583299dc7dfb2cf5d6769f73f3102f31dec53107ba1628df0d509c50115ebd050e

Download Submit
memory/1740-84-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1740-86-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1740-85-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2012-82-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2012-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2012-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2012-207-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2052-7-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2052-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2052-10-0x0000000000589000-0x00000000005A4000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads