cycbot | 4c9d6f18855387f246464946b640827589334657cd4d218347c1fa840b2ae50f

General

Target

JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe
Size

155KB
MD5

c62ce69b4e7e013f19d4c35ef982712e
SHA1

4e3c2c750cfa4829e9995abcf3f27db0687762a7
SHA256

4c9d6f18855387f246464946b640827589334657cd4d218347c1fa840b2ae50f
SHA512

58cc81db31a217587e4a735a300502de3cab8f944523e570a575e70f395f3381824ca68e696f83b4eae56c8dd257584f23b98dbd2fedd613a55933bcf318588b
SSDEEP

3072:0b5v3fTPxlXNwt6zPBK7owR1gMwCvBafRsf7Kuatr2V383J:oTJwwwUMwoQpA70trgI

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/2812-9-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-20-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/3060-79-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-194-0x0000000000400000-0x0000000000442000-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_c62ce69b4e7e013f19d4c35ef982712e.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2812-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2812-9-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-20-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/3060-79-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-194-0x0000000000400000-0x0000000000442000-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_c62ce69b4e7e013f19d4c35ef982712e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2812	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	30
PID 2236 wrote to memory of 2812	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	30
PID 2236 wrote to memory of 2812	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	30
PID 2236 wrote to memory of 2812	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	30
PID 2236 wrote to memory of 3060	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	32
PID 2236 wrote to memory of 3060	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	32
PID 2236 wrote to memory of 3060	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	32
PID 2236 wrote to memory of 3060	2236	JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c62ce69b4e7e013f19d4c35ef982712e.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3060

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\5C3A.7B6

Filesize
593B

MD5
31d7efdcf7449f4b537e18e25fd7e8ec

SHA1
d586dafa7cdfe8c043aa14329075d5fe866bd210

SHA256
a3edb4c84e80f6a6ba6b572cbbdd44dfe6141e735eff3a7376799ae3fbef77c2

SHA512
1240bfc4a91c2a18f3b5182cbc2697490151291c86edf78f2d6e767bfc063df175848cf4c25c722282e4df43340d8a5b8203f58c605bbd727d69cc64c206aa3e

Download Submit
C:\Users\Admin\AppData\Roaming\5C3A.7B6

Filesize
1KB

MD5
4e8d718050936ed96a43d8644f36aa10

SHA1
948db9435820f62e6ee73c8a5c2e78f2fb2fd86a

SHA256
a6db41465fe17303a57b2be64829caa03a3dc82c5ce5ff4735d6e4f6da385190

SHA512
f93347f09391f83886b62741981a0909a32c9c4a27fd9242f45ad619b3f81bb913ff0ea5fbe75471b0b5471e8dcf2c7a21b7d82d92c46ff01c3a80e58cd16eec

Download Submit
C:\Users\Admin\AppData\Roaming\5C3A.7B6

Filesize
897B

MD5
ae34dca5f4680456354db161558ed23b

SHA1
0452cf6024b669a68657411f40095d73bf540261

SHA256
58c4bea7567488e9db9b73527d27760d7008479a56f561813b4ed322b8f733b2

SHA512
6cb49e72453fdd89e5fc9e10932b1c95ac2f5b0ff1a382f45701697b40facf7e1b002159d6c1d47b0e1736d28272dda148de586f392211f3b533ffa5830ee14a

Download Submit
C:\Users\Admin\AppData\Roaming\5C3A.7B6

Filesize
1KB

MD5
341bf0a6dbeee36dd92a7e4d735b37a3

SHA1
d24ffd16d987d48154c8751b00a648734c3dbbcf

SHA256
9e67002570ce3ab261ec5c9ad3f9646b6c29a6dad33a074f3ea005c25cbe38e6

SHA512
04c540dad482cd2ae23fcf3a53bff8faf232d7a921d17a02936481eb96dbc77c079878226b1b27142e8d61955de6af56ec590a1b60389a29b58e41bc26ff368b

Download Submit
memory/2236-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-194-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2812-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2812-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3060-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads