cycbot | 76ac60451f9bed4532d803a4fdda105b1fe174156e57ec9f84f5a432a20b39c2

General

Target

fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
Size

164KB
MD5

fbd25a2f670f71e152057047faa8cbb2
SHA1

15a4c8b713878d7ac3a941013a3fa2346c4f99dd
SHA256

76ac60451f9bed4532d803a4fdda105b1fe174156e57ec9f84f5a432a20b39c2
SHA512

0ef95edeff4e1024b28d16c92dbaab5887cccc8cbc32a55a6f0ee4d9ae721c61e96139615d7737b3660bd09a500f7523043d57bea6e4a5aaa82c1c078eaac3b5
SSDEEP

3072:zBV+dp6Ihm1pKsI2/INmWvKsYTXDqKgn69WtvN33jpk9QVGV+dYO4:XO0Ih+hv/sKBTDqKlcvZ9k2c+dK

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/2540-7-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2280-23-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1056-86-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2280-87-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2280-194-0x0000000000400000-0x000000000043D000-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"	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2280-2-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2540-5-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2540-7-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2280-23-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1056-85-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1056-86-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2280-87-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2280-194-0x0000000000400000-0x000000000043D000-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	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2540	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	30
PID 2280 wrote to memory of 2540	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	30
PID 2280 wrote to memory of 2540	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	30
PID 2280 wrote to memory of 2540	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	30
PID 2280 wrote to memory of 1056	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	32
PID 2280 wrote to memory of 1056	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	32
PID 2280 wrote to memory of 1056	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	32
PID 2280 wrote to memory of 1056	2280	fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fbd25a2f670f71e152057047faa8cbb2_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1056

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

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Downloads

C:\Users\Admin\AppData\Roaming\F2A4.5E3

Filesize
1KB

MD5
28b77c98acee4ca0a9b17daf0b7c1e46

SHA1
3a7d042f14e90c5ca30257f87ba58b0f761809c3

SHA256
9e3be7d7d13727b5a5416d027e10aba335195faf9c2db11fbe18af87c8e6f9da

SHA512
a992a71d2c67ba9b3c4f58a084269741516f363e20533fb2055564acba7fd2cb011c7d7a3b0884d8c5e6463487e51d7000a8a932aead89c0567edb35bb5a367e

Download Submit
C:\Users\Admin\AppData\Roaming\F2A4.5E3

Filesize
600B

MD5
939edde905ead7045d79ad9a77e83239

SHA1
fd48b91a373561bf18247527fb647fdb57cbf895

SHA256
4d084ec774af913792af9b2fe1d4ac221bf614bca5c4a56efe1360f5eefd264a

SHA512
2470db9725677835f65232120b904a92f96e91dd735479f01647397d3415624c9ff945f064193a41d0aec4df2bf74aaa156b712f2b3cfec4241f1a2415531b92

Download Submit
C:\Users\Admin\AppData\Roaming\F2A4.5E3

Filesize
996B

MD5
9d0b6017062fa761e5c169de1ba2f26a

SHA1
e181dfe8dc5b1d8849e5ecc5cef486bc45d6b304

SHA256
9b92b530f6a58d2d89f2efe7bc4a3dbaa74da73ea96df5341cf9eab2fc8e9c7e

SHA512
77d230015b5644b283d0b14294b09e892729a100139aa23449ac6add24ed486e49eb296534813993a94b8987d8e1aafc6daa4bc39d327982578b0a1d4c7bf962

Download Submit
memory/1056-85-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1056-86-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2280-1-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2280-2-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2280-23-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2280-87-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2280-194-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2540-5-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2540-7-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads