cycbot | 0cefb50111a023e783975377ccc9291d7bf23799e527cfb683892ac570800167

General

Target

JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
Size

153KB
MD5

3ce5a94f9e31d1eee6239684007ec5a1
SHA1

769c0e5c0122a75a9990667a40863b7cd21c8341
SHA256

0cefb50111a023e783975377ccc9291d7bf23799e527cfb683892ac570800167
SHA512

4ae1dd6c7a0f6acac2323cc286a473f0cd0e704277a786c71a8acee2fb345e4d9818872fe9873d445c1d07251c65d1463b969cb2e141d91fcd71c531532b95e8
SSDEEP

3072:ODs8TuvZP4ableFNMprUd6YzZcQxIx0NKL8QvLzUqpVI7raIQbGk:ODs8qZP4adUdBVcq80N+n8H9k

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/3020-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2168-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2988-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2168-87-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2168-191-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2168-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/3020-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/3020-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2168-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2988-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2168-87-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2168-191-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 3020	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	31
PID 2168 wrote to memory of 3020	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	31
PID 2168 wrote to memory of 3020	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	31
PID 2168 wrote to memory of 3020	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	31
PID 2168 wrote to memory of 2988	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	33
PID 2168 wrote to memory of 2988	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	33
PID 2168 wrote to memory of 2988	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	33
PID 2168 wrote to memory of 2988	2168	JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ce5a94f9e31d1eee6239684007ec5a1.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988

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

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Downloads

C:\Users\Admin\AppData\Roaming\67AE.991

Filesize
600B

MD5
e88fa68c5a9f9effe0252c8429b001b0

SHA1
d0608755dd2d92cb6bf9626c002bbc0f3b151da8

SHA256
7bb6415b979a0f396f496faeaf9f1a1615ecf35b42abb8bec0f5e8a074398f45

SHA512
730b97191d0b13011b200b804d41b92106d8dbc7a07108a8dc097f1b7e0e72486b863a4555e1286a0d484d81d467f86d194f0c874fcbe32655b46e3d5c3a107a

Download Submit
C:\Users\Admin\AppData\Roaming\67AE.991

Filesize
1KB

MD5
da80d0e779393476dba59e14e4f028ae

SHA1
b8ba39aedd023df77a7df34f7ae2b5ee9ba3ed2f

SHA256
78dcc1e06671c1a65bdc1447dfc88a0e8ec81e88e3a798838b5c41c83afb4060

SHA512
c7fa3eb9609fbce8c767ba5268224af6d2eb255180fb046cf2f45860b98a396ee36d0b98bfc06ba712ee832e54686c5cf7a151bb954f5510225a201535532267

Download Submit
C:\Users\Admin\AppData\Roaming\67AE.991

Filesize
996B

MD5
6a6e7b441db50d935cc3d48fcab5c474

SHA1
fd6b23275957af1d014dfb7bf750768a622075f3

SHA256
66061ae62ec6dfb7633d743dcb4adc4700aec141cd0e1c6da2ff2eb0b5810ad3

SHA512
93ac65126dd0a4282da7181b0e09005c346b53cb0f682df37d6b83a0b5a544f43d461bc318301085f007605d0fc3f8d25f0f6395176f52c245096306e32c6d51

Download Submit
memory/2168-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2168-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2168-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2168-87-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2168-191-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3020-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3020-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads