cycbot | 56ded3162461dac583b7a58b101734cc264a429b6f745fb3dc9331c6e5fb9992

General

Target

JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe
Size

159KB
MD5

77113ccb7daef63288a4b67f481a0898
SHA1

26cf54642f629acc6746000830e4d835ba9fb97f
SHA256

56ded3162461dac583b7a58b101734cc264a429b6f745fb3dc9331c6e5fb9992
SHA512

8ed412ca863b3e86452a4342a802b8542f0ed6d904b13555363a6f28b54c2c862e0e4224639a15729768604ead8d397ea5642289f7204416336a7baf2a770be2
SSDEEP

3072:phQF6Mkng3ebcRlYE95SJjYcLCeJaKbWkCbV9iuw9Ccjxrmqf9WsrcZ:piFCwlyE9WTCeJaixUVDjcjxrmqAsk

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 4 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2084-8-0x0000000000400000-0x000000000043C000-memory.dmp	family_cycbot
behavioral1/memory/2028-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_cycbot
behavioral1/memory/1212-78-0x0000000000400000-0x000000000043C000-memory.dmp	family_cycbot
behavioral1/memory/2028-79-0x0000000000400000-0x000000000043C000-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_77113ccb7daef63288a4b67f481a0898.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2028-2-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2084-6-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2084-5-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2084-8-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2028-15-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/1212-77-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/1212-78-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2028-79-0x0000000000400000-0x000000000043C000-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_77113ccb7daef63288a4b67f481a0898.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2084	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	30
PID 2028 wrote to memory of 2084	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	30
PID 2028 wrote to memory of 2084	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	30
PID 2028 wrote to memory of 2084	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	30
PID 2028 wrote to memory of 1212	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	33
PID 2028 wrote to memory of 1212	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	33
PID 2028 wrote to memory of 1212	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	33
PID 2028 wrote to memory of 1212	2028	JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77113ccb7daef63288a4b67f481a0898.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1212

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\5E83.CC5

Filesize
1KB

MD5
06fc780e9ed4f06a65b828fd8ffe124e

SHA1
8c6bf062cfe4c922a2b6d5a77dc3c880ce7c609e

SHA256
7c951d6bf638e169ac572998b0500bcbef724c0f99dcf98faf13f056c4198b4c

SHA512
bdaf9384d296e60ec95e833970a0e752ef26016b15b9dbfc1c01dcd4f26bba8672ed50140883042a3c26f604bb5491734cbe859eb8a11b4ba6f368f1a2ca0945

Download Submit
C:\Users\Admin\AppData\Roaming\5E83.CC5

Filesize
600B

MD5
2b582858b74ae602294ed3f50d2ad8c1

SHA1
c6c13d2bfa77ce0f740c922a2cdc287c4b3a8101

SHA256
792ec8ed14193398b1c2de5a94bbedc630457fca6289109914d4738e0a564216

SHA512
de773d6774a32f8afa3194145ca82715c17c6d73f4a0ab2d9a8d4bc02023af5edc6ea6fae6aa846ff41c0b8cc8072954401757a27ad19b75ec08309daa1fc868

Download Submit
C:\Users\Admin\AppData\Roaming\5E83.CC5

Filesize
996B

MD5
742b59459b533949bc7626c92c226522

SHA1
fa621f97503054ac25ab334d46e6a869a8b79018

SHA256
8694c96d5e6ff6f3d12582d994a0dff50c29de6135d4c45735b479af8d259a73

SHA512
d41350a2e046d9c0a45a295a061bbec7fb031a2f43e8da9b84aca0f8c6b2092f67ed634ce119aa6e507590b5a756d2378ef8719bbf52c22960d6ffb7e2f14bdf

Download Submit
memory/1212-77-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1212-78-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-1-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-2-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-79-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2084-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2084-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2084-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads