cycbot | ef3a1ae6bdfa5a12a531d23bd771b3ae52f97b431a075b6f5aa999f0c9918cad

General

Target

dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
Size

181KB
MD5

dc08b5c958a76bbed8818863783cbf73
SHA1

8eab379b76d2970e65ccd976db4b811a4cef77a6
SHA256

ef3a1ae6bdfa5a12a531d23bd771b3ae52f97b431a075b6f5aa999f0c9918cad
SHA512

8e87b544d31fac83b31cfc224ab53da0a1bb251251c294aa57815bbdf752ee88b6de6bf5417e986b9bcc055f8a88195a3b7ecc8f28ba1d56cce648b6c520d7c2
SSDEEP

3072:PuIQzdom1Fi0i6ls58gBseQU34kwfIU2uqzUyudzFb7wnQ:GVzdpQEOprDIkbnuqzULdzFO

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/2060-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2392-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2176-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2392-81-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2392-192-0x0000000000400000-0x0000000000442000-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"	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2392-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2060-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2060-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2392-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2176-78-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2176-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2392-81-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2392-192-0x0000000000400000-0x0000000000442000-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	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2060	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	30
PID 2392 wrote to memory of 2060	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	30
PID 2392 wrote to memory of 2060	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	30
PID 2392 wrote to memory of 2060	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	30
PID 2392 wrote to memory of 2176	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	33
PID 2392 wrote to memory of 2176	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	33
PID 2392 wrote to memory of 2176	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	33
PID 2392 wrote to memory of 2176	2392	dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dc08b5c958a76bbed8818863783cbf73_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176

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\EEFD.853

Filesize
1KB

MD5
9bea151864d0d1a0156a9ae79cd92976

SHA1
c9b4a03763553091216bf686f9b160789e30de6f

SHA256
337e213548825e53c70e49d210b356c3908cd7d5970d961579ed8a300d2a874e

SHA512
79ed01a05312c35d4cedaf10a74e007cbd15e46eb9131046a56b54073653617f577f6b5a440b8e2dc5cfa2c94dfe3b8c40539781982c1d5fa0d778f7b1cf38ea

Download Submit
C:\Users\Admin\AppData\Roaming\EEFD.853

Filesize
600B

MD5
96ad4199a4bc550c86db0b57fc79850b

SHA1
c25a05ed719baf300630c93d9c9a743395cdf8b0

SHA256
0cba1172106defff4e7b7ced6b703e3d4c4a5a0815a6a1ea28f5734895a49fba

SHA512
667d1ffcf36ef8b5c45806f0fe7ec2213dcbb464618ffaea1ef0f90c91333925a17ecc1ac33e48f2f6e6ec3a52aad3752d0c1f3c15419ec884c6bea53956723e

Download Submit
C:\Users\Admin\AppData\Roaming\EEFD.853

Filesize
996B

MD5
4d140eab5baf9a598d0b844bab410190

SHA1
2a717cefe27693fc8da336e82955290a94cd4462

SHA256
3abe1122fed27c476e12bd8235fdaecfefc20773da3a4d54af48852862b9a3db

SHA512
d577b4d80e48b6310869958b08db9ed36e2f2a5bcca37892104c52b37f71ef7e31aefa60438961802f8c88a2d8b59a89142b5b28f46e989c6c637cad9aaa49e9

Download Submit
memory/2060-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2060-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2176-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2176-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2392-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2392-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2392-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2392-81-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2392-192-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads