cycbot | 77526c7cbb2ae98f6497b75415607922f23165a765b0cda26f6ca9c4d2b13e93

General

Target

JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe
Size

165KB
MD5

39b3fee2068eda51f03f77153f3c6a41
SHA1

a6bd7d9b5fb11d626bb003b6938a391aa7165aed
SHA256

77526c7cbb2ae98f6497b75415607922f23165a765b0cda26f6ca9c4d2b13e93
SHA512

5cddd60a682450eefcf14b9c2ddbffcf952184324c164d965c541ac2226ca637fa91030cdb4b4cd8124f3364567074e0b81a14fa25c2be721b057559ad6180f6
SSDEEP

3072:gmaYFWGGuPbP8ltjBH3oJwWJKGmputhaHdDyV35+hR0gq+dUBgX3ae7Sz7sgpQ:cGxD8ltjBH3oJw0bUAkyVJ0R0f+b6OQX

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/2084-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1832-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1832-78-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1768-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1832-197-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1832-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2084-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2084-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1832-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1832-78-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1768-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1832-197-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2084	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	30
PID 1832 wrote to memory of 2084	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	30
PID 1832 wrote to memory of 2084	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	30
PID 1832 wrote to memory of 2084	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	30
PID 1832 wrote to memory of 1768	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	33
PID 1832 wrote to memory of 1768	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	33
PID 1832 wrote to memory of 1768	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	33
PID 1832 wrote to memory of 1768	1832	JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.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_39b3fee2068eda51f03f77153f3c6a41.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b3fee2068eda51f03f77153f3c6a41.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1768

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\814C.90C

Filesize
1KB

MD5
d8df39c1845d498ce997b12371e73ff0

SHA1
c50446caf1ad3c4e5aca9f58a7344a7aff84959f

SHA256
a4272891bce1c695b659229a648d2d768413ea5eec1caccde106322c80d6232d

SHA512
9031f607ba73ef276edde3023b8ec110193d25f72c2e0409df6eafab8a7751f03be404080879866f6014c38fb29cb2f10bbd331dd3e9b404ff7270cea347d61d

Download Submit
C:\Users\Admin\AppData\Roaming\814C.90C

Filesize
1KB

MD5
4f6209a47de4a2ff62c43817d73afad0

SHA1
1a933aa2f7bd8e6bfb8d7f79716697eb94caf602

SHA256
f20c9014f265d97c7d1538da0a63ff38ebb05685c1eb09c30ebdd421f5e8aff4

SHA512
f2c50930f65e57a8098e2d5686dba58bf38fd236241a99588e0eddc53f76fa6b896ea049f35f9b4b13aca1e11c56c60b5444bb82ed1fd7b10a51bab3988cbb38

Download Submit
C:\Users\Admin\AppData\Roaming\814C.90C

Filesize
600B

MD5
609e8cf16ef63b60ee747eab89b96bbb

SHA1
a831d7e65d46b7f412edd306bbf1862c24af69f9

SHA256
39ef6935867743ff90164a30449b6c6031358a2c7e0b081e34efc7aa932f1064

SHA512
19ec811e0a6f01c452bf16443a0b0cf5e02847965961177b798a1908a226d749978cfe2fad7a2d5e25681c931b878f89621f2f80279addecc8d62cd59e93e6c9

Download Submit
C:\Users\Admin\AppData\Roaming\814C.90C

Filesize
996B

MD5
d0e3df44cd8128cd2c05bce24039a746

SHA1
7fa172da89126ddec47e51cceed48a2e539760c4

SHA256
e11b01b34abcf96bd28494b40f3c54bf577192512c46055b33e470a3b0a2da64

SHA512
c9f05caaeada0c8fc8c88d55845571b54bc0aae87c8d777f50f21eeeb6a86df520115a055820f6fb46e328de1d87b7427e68a94e42ddb6323cb32537af52d394

Download Submit
memory/1768-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1832-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1832-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1832-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1832-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1832-197-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2084-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2084-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2084-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads