cycbot | be3f5828d78904e924d91dbb266996cd58110fec81320af5a3f2d700f2b834d8

General

Target

f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
Size

155KB
MD5

f27e3f76056154ebca5131a10f2a0ab5
SHA1

3f24c3b5f80593ae6726b2c009dae7d9888a2c77
SHA256

be3f5828d78904e924d91dbb266996cd58110fec81320af5a3f2d700f2b834d8
SHA512

4db527c42097ebc011b02507c97ad814c5c875061c567df6c2031ee6780a7b853bb2485007cfadf70515da34abe09659923c2019f08908b33750ac20d2d39b63
SSDEEP

3072:vw/9LWqGjWmpYCMg9kQyaW6ywE8LU/1Bd8A9GRikTlqZkWMwrw7DuC:vwpWqPmuCMg9kdIU/1oA98JWMw+

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/1532-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1392-18-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1392-79-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1280-82-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1392-196-0x0000000000400000-0x0000000000442000-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"	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1392-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1532-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1392-18-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1392-79-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1280-82-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1392-196-0x0000000000400000-0x0000000000442000-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	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 1532	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	31
PID 1392 wrote to memory of 1532	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	31
PID 1392 wrote to memory of 1532	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	31
PID 1392 wrote to memory of 1532	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	31
PID 1392 wrote to memory of 1280	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	33
PID 1392 wrote to memory of 1280	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	33
PID 1392 wrote to memory of 1280	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	33
PID 1392 wrote to memory of 1280	1392	f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f27e3f76056154ebca5131a10f2a0ab5_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1280

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\B3C1.2F9

Filesize
297B

MD5
1d958f874f0689aeecaa68cf9c27db29

SHA1
902c451359fee78b6979890ab4be03d419344e7b

SHA256
8727e29509d2ac1d3aa578d2bd92dd00c1733d9f31e4390abd7c71301339f30b

SHA512
66717fb149b17dfdd7f8254a38a7e0913bcc256da0e9f83ed2892fa29774e2fc04f50dfb8472fe38ea1a1609fbe4991ef26e7d982bfa22a81e3dfc02a1d9ebc6

Download Submit
C:\Users\Admin\AppData\Roaming\B3C1.2F9

Filesize
1KB

MD5
d39ca678dd8098c54e21d00d27612e95

SHA1
68bcea5326d420083a14e56c638a2e5c8138b831

SHA256
61c493d735c535431f1cd8c39392908782d83cb5b16f62786483fd0016a62ba0

SHA512
76400d1dd66a923bf872eb2faa6909e8c6e06f02d6706325b04bdb258a87abc8db780cce3d190ad7b8bc92f561573dd0595d5698108a2bf294577a76dba87938

Download Submit
C:\Users\Admin\AppData\Roaming\B3C1.2F9

Filesize
597B

MD5
f05f05281b70cacdc2c05ac5e98c6a03

SHA1
4ebf84ec6890e1f01c158acff2a7996710cf9175

SHA256
b8a7f5635874dd6ab55d1185c5069f18703266c083ce99e625ae09e8bcc6f048

SHA512
5a3dcee260f8101507669da3cb687509c749c1ba7f1005fee81b5f701b00b8711da4c7ff6ce2b097d35fe1689c999d713094f0c1348b90d0a0bed6705bf873e1

Download Submit
C:\Users\Admin\AppData\Roaming\B3C1.2F9

Filesize
897B

MD5
aa979c852d01d0d17e313f8c1b8a2c61

SHA1
6b0ea8379f418ffa9399c87cce06e327e3375964

SHA256
435485e442272e6d894a4044d5d648c8b42b900d1fb78efc0a7ce584ca976933

SHA512
c120826770c95013dc2a7cb3071cd1226901a7965504e91ca6e88e6d13cd76997cbfb57f28d2208bb4940a67d34bb6360426b94d7979746ee41f51706dede3b0

Download Submit
C:\Users\Admin\AppData\Roaming\B3C1.2F9

Filesize
1KB

MD5
b7b08f4f5b38a90ea50f4718e2d47f4f

SHA1
666a39c030047295bc9a7903b96372275cb0ee28

SHA256
73a818139a7a32d94656dad9bb5dbf85ae083958abea4840a26ab3a27f24010f

SHA512
9c853a3c6fc1683fc8b17c58203569bec1f57414b4dd2569b74d8098940aeee8a32e273d4ce6da7f1645486bbee79bf3be2f9d49e40c37dcb23961d3c15212bb

Download Submit
memory/1280-82-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1392-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1392-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1392-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1392-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1392-196-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1532-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads