cycbot | b4e7d61c7bc8d1de5cef00631f590944604df0a35c1da3c9387f6ed13ba831a5

General

Target

f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
Size

172KB
MD5

f22e44ce0a211e269675e7f83a1671ac
SHA1

4aa196c923cb820c5e7c9a73a45ca7051c8995f5
SHA256

b4e7d61c7bc8d1de5cef00631f590944604df0a35c1da3c9387f6ed13ba831a5
SHA512

4bd2180ee5a98effd5fb643f7bb16cbf7d8d919fb32fb3c350d01ab1e664534f3c24dfaaaf1d2ed7a88d3114c2aaf2f4862157faca9744c3010ed24dbffd3271
SSDEEP

3072:jIs0loJfuALqzYjZ6HXg6TdwXy9ngQXcqNhbJVuHE/y/COPfaRYv0qQxA/9T0:7UoNgYjKgmdyigQXHhdoH2yZPftv0+

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/1652-8-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2008-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1928-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2008-84-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2008-157-0x0000000000400000-0x0000000000445000-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"	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2008-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1652-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2008-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1928-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1928-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2008-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2008-157-0x0000000000400000-0x0000000000445000-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	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 1652	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	30
PID 2008 wrote to memory of 1652	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	30
PID 2008 wrote to memory of 1652	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	30
PID 2008 wrote to memory of 1652	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	30
PID 2008 wrote to memory of 1928	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	32
PID 2008 wrote to memory of 1928	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	32
PID 2008 wrote to memory of 1928	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	32
PID 2008 wrote to memory of 1928	2008	f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f22e44ce0a211e269675e7f83a1671ac_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1928

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\02C5.B0A

Filesize
600B

MD5
1c256fc5686f96f5ecf1bb2668dad6b7

SHA1
9b2c94932d3b46e033daef7092a0177fa1ed40b2

SHA256
4ef8f93859f1f54cc09d5121b60225f0aa3bcbeb7363fe2e608da973fa9613e5

SHA512
8fe49fde3fee30d35b4e4d2f7789f3b420910cb417fc7efcc236fb62b52627ad44ea26b2fd37f19b45deff3c4ad1b4bc5d99ef6b100a5242c993efaff1e539cf

Download Submit
C:\Users\Admin\AppData\Roaming\02C5.B0A

Filesize
1KB

MD5
de93dc890ad5fc872af15cf08de429d7

SHA1
2025ee47a5c3fccd63e6e1896215dcce3167dcc3

SHA256
c4349a367f419a5cb046d979ddf2264d7910f4f9036e76d68a9aa83ea42724c9

SHA512
605f49487340ff394cbdf455838533d23c9fe82d02460a8239b831b92aceb2f6ddbd7a01ce75d0fb1f62929630bfaf53518f877aef689da1c66004c341679003

Download Submit
C:\Users\Admin\AppData\Roaming\02C5.B0A

Filesize
996B

MD5
f3bc6b0f36019d9d1535255aa798f908

SHA1
c7c2593e400726e825d21bba8df1c225cf6addda

SHA256
43875e3d9248b7e3c5d6d2b7ffd2072cab2aceca1bfa52fd0cad1bd79fd5e98d

SHA512
fd441b67bb2ec52b8bb93b72e200f9955720a035bed022d1eb7633a905c05ca3037c2eab739588f309edcdab038ee4c6323b1da40a278245a56b10483df26f6e

Download Submit
memory/1652-9-0x00000000008F5000-0x000000000090F000-memory.dmp

Filesize
104KB

Download
memory/1652-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1652-6-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/1928-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1928-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1928-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2008-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2008-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2008-157-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2008-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads