cycbot | 77f0eb1e57f75b5837d5d99352d70fad800cca8acd11994371b12a98fa18cab6

General

Target

JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe
Size

183KB
MD5

4aded1b2b7b527b29933888831533a89
SHA1

7ca6760820b00406cbb3fdf7a7f647c0f2278a24
SHA256

77f0eb1e57f75b5837d5d99352d70fad800cca8acd11994371b12a98fa18cab6
SHA512

4d8fc6b550031fe7c30705226df5dc6765b44d902db5bdc03146c17db17617358fa73f922d2ebb81a396b6fde7cbfa1110fc32c2d7121c3f236dbe6e4ee58c3d
SSDEEP

3072:W5qq2SRERUTdP1UNi7nESEjeZWcTZM52yEOOQFuuIsCYMDNQRHohEIf:WTRmDNtqhO2OOQFuuXKNQ0

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2668-8-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2668-7-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2712-16-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2812-85-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2712-148-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2712-197-0x0000000000400000-0x0000000000445000-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_4aded1b2b7b527b29933888831533a89.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2712-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-7-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2712-16-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2812-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2812-85-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2712-148-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2712-197-0x0000000000400000-0x0000000000445000-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_4aded1b2b7b527b29933888831533a89.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2668	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	28
PID 2712 wrote to memory of 2668	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	28
PID 2712 wrote to memory of 2668	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	28
PID 2712 wrote to memory of 2668	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	28
PID 2712 wrote to memory of 2812	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	30
PID 2712 wrote to memory of 2812	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	30
PID 2712 wrote to memory of 2812	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	30
PID 2712 wrote to memory of 2812	2712	JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4aded1b2b7b527b29933888831533a89.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812

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\1821.933

Filesize
1KB

MD5
a595d38bd109f8cccd4e91ae750a7548

SHA1
5119296f3ac0bcd2d44579d75736e23ffd3b599f

SHA256
9e46316aedce896af72cd079ae879ab177b4caff5282e59972cbd346272259aa

SHA512
6004b08d265b73696de70651f9c931827c860655befb4c7028c3f67ec20f8575de8e486bffae7ea11207cdcf62e703b92a63a31b5136b19e5f1d596524a156fc

Download Submit
C:\Users\Admin\AppData\Roaming\1821.933

Filesize
600B

MD5
b6ba94b6285843295a110681be96477e

SHA1
e404de9301ac8bbcb9bb2c2f2efd06722c26a74d

SHA256
3e2085d61bd425e6519debd8a3e7651e5725484898cbb95010fa4c0a9206875a

SHA512
b20a0685c0cac8b5a10814896b0b90ba895a7f9aa4b86e9513d7604759d3d21e45cd88624a09ce933337e4f9d5b7978a18b257864a7f2996f956923a541c8b51

Download Submit
C:\Users\Admin\AppData\Roaming\1821.933

Filesize
996B

MD5
a730ed8c271c1be879e93a83c1a3f801

SHA1
091d49dec007bf0d51f31d6e0c96672646b116df

SHA256
b7f0ab681c36b00b09010ceaf10236fa8768295e367612f84aa45017a181e269

SHA512
7b9d97d923bd0f4ab1b607452190e65ec1b55c8aab3af033f9572f636497aef4950599774c82958e902e4b26f4fbef729805bde82fc71d92b68e830ddd62db4e

Download Submit
memory/2668-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-7-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2712-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2712-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2712-148-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2712-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2712-197-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2812-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2812-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2812-85-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads