cycbot | 5b1215f9c6427d230ac02aca1e84c7f81820bf08d2dd02376d1d84e40e0037cf

General

Target

ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
Size

154KB
MD5

ec9062adfc65552a82d719f4932c361d
SHA1

96c5ef9f64b07539671c960cfcf3012e27e6f33a
SHA256

5b1215f9c6427d230ac02aca1e84c7f81820bf08d2dd02376d1d84e40e0037cf
SHA512

e46ab4450c92a1546185de5f67e9ffe9131aa43eeb423712ddebd28c9e82857fee9491c108bb5e4ffd00311fde3828c73c33ce5e73dd39de26192ba655172fbb
SSDEEP

3072:dXo/UUiDDlZe/dYmxzdhoCBWZ7ehyVvB27CVKuZEIrv5:dXNUAlZeeAnoCye8527qKkrx

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/2628-8-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2072-19-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2072-88-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1548-91-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2072-197-0x0000000000400000-0x0000000000442000-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"	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2072-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2628-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2628-8-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2072-19-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2072-88-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1548-90-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1548-91-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2072-197-0x0000000000400000-0x0000000000442000-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	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2628	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	31
PID 2072 wrote to memory of 2628	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	31
PID 2072 wrote to memory of 2628	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	31
PID 2072 wrote to memory of 2628	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	31
PID 2072 wrote to memory of 1548	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	33
PID 2072 wrote to memory of 1548	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	33
PID 2072 wrote to memory of 1548	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	33
PID 2072 wrote to memory of 1548	2072	ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec9062adfc65552a82d719f4932c361d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1548

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\3A77.108

Filesize
597B

MD5
c5bca21f81aeefcb9b0784aaf014db41

SHA1
56f3a1f123bab48eafcf30e0c26def9eb00e9a48

SHA256
f49e13bf354ab3b1e8f81f1f7b27765e8c8d82a803ce6e1dd6bf329e0cc19b6d

SHA512
5d6021ea593925e52c03096dfc561ae506907e3dc2dc14e5fd180feb565ebc1a0a0e5d3a63b63c137ea62d2d764f4ba68b8f50034f8afb0076b3c1e2469371f9

Download Submit
C:\Users\Admin\AppData\Roaming\3A77.108

Filesize
1KB

MD5
85e0920cdef1e63109a860b59a1bf5e5

SHA1
658097f912b9dd5d1664939bf4581b913dbfd87a

SHA256
82eeec32918e1c5af42cb41de614e173c7bb6e951e37e664364aebfab86d038d

SHA512
8700a3942ce0c3c96dd9d1437f9b633005dfc148ed3364ad23cd509ebdfe41d4f197370ce3fb824f808980223d95d3c0b5085cbe7611ce7ce4a9ace86f13dc48

Download Submit
C:\Users\Admin\AppData\Roaming\3A77.108

Filesize
897B

MD5
80c7f3a7c9f0c344f8157cf685f7fd1e

SHA1
970137e80899fc9cdb4a8a583378baee634b5d82

SHA256
49249249578f340e1b840a388459b28b8fd92f2ee40806185ccc5ee20800b310

SHA512
e1d6bc5f796d7de2fe7c8fc6c19deb8940f4138fecee3a83f0d2f6987a2d3988e813ba8c3c962fd329eea7bbdab8d3803abeb7e1e8a781422da88e5cce22bf62

Download Submit
C:\Users\Admin\AppData\Roaming\3A77.108

Filesize
1KB

MD5
6550aa721b2b0e5b21d0a8f6a041436e

SHA1
f223065b863e81800fa3fbffdbd5d2a61314aad2

SHA256
e0c12f8b70d92b001338d20bf4d14ae74537a27424c5252d7f2aa118c71b2c09

SHA512
6203180cc72fcd9ca6bd802148cd52a9d4b4dd0d9aea6a4f13f575959e6a25e5726e99759a4649dafa8117ed52e5e08012f8111bac03b503351871ace25f52de

Download Submit
memory/1548-91-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1548-90-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2072-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2072-88-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2072-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2072-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2072-197-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2628-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2628-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads