cycbot | e8cda5bb3bf4a7c8d6c2cd7d15a4e73e8efe68b8df2bc0146a7540c59e489375

General

Target

e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
Size

181KB
MD5

e8b3747e27c2a5301ab052b00cb7481d
SHA1

a2eb7df8211fba3780f9b1373309ad61ee47de3f
SHA256

e8cda5bb3bf4a7c8d6c2cd7d15a4e73e8efe68b8df2bc0146a7540c59e489375
SHA512

d0f1118d81497a93a014d4b6f1904e605fdca0ca5615a66a830eb194a4228c75cc985d864fe395b168c15016f3fe16262d7605a5a61072a5774b82c242c4f32f
SSDEEP

3072:1lpe9xEv8NNV2yYaIXvGhXkykB9SgluCRXSAVWn+fTtYKh0RCA9qUGRQtnk:1zcxEu+yYaIXhyknSgluCRCBn+fTnCR4

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/684-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/272-85-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2068-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2068-203-0x0000000000400000-0x0000000000442000-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"	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2068-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/684-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/684-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/272-85-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2068-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2068-203-0x0000000000400000-0x0000000000442000-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	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 684	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	31
PID 2068 wrote to memory of 684	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	31
PID 2068 wrote to memory of 684	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	31
PID 2068 wrote to memory of 684	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	31
PID 2068 wrote to memory of 272	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	33
PID 2068 wrote to memory of 272	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	33
PID 2068 wrote to memory of 272	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	33
PID 2068 wrote to memory of 272	2068	e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:684
- C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e8b3747e27c2a5301ab052b00cb7481d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:272

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\C644.739

Filesize
1KB

MD5
5c5c4350d908911fb6c6928c2c4c1215

SHA1
ce639c59fc5991672a1309beee3ae29dc909f440

SHA256
a05aedd303616ef7aa86877927eae9501f7bc406b6ad59e3df8dfbc50959349e

SHA512
d0cce207b29ba2fcdba0e4668c8b039afab31e7050784badfe32e46bed42c6fc4c0a67ed43ed5d9719907f97f72afa4d13f102d76fa2445fa62bd321b70091cb

Download Submit
C:\Users\Admin\AppData\Roaming\C644.739

Filesize
600B

MD5
ed13a0b691e0303eadd1235b2d271038

SHA1
564821e49c05e404568b78044bb656cee65cd095

SHA256
a8ecefaa2fbee1e6ef570419b594bf8df43b67c86ea7e7a3c568495d267c4deb

SHA512
1cfe2d58d931975a38eabe51876630c21d68f123426915183b3a7f15f4be89092bb5a308e311b71f3e855774e95e9db0c8d570811fee58ca4fd4dc73fb33c375

Download Submit
C:\Users\Admin\AppData\Roaming\C644.739

Filesize
996B

MD5
9a5f1e9de32238daaa9d5d1ced85e898

SHA1
a8bcd7f72cecaec1b48d5b224cfbc5fc7d5a04d3

SHA256
56db93260ce4a79e71adb30fe058e5049d72f1db43d3713869e8096bc128834c

SHA512
5af5dd90f3db71ed261adbfce7ac9dd2cd5fc1302324d693707626824da248b8e0f1fe276a8c594042c192a422620fbc64bef709f65b299797d3733d9668e469

Download Submit
memory/272-85-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/684-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/684-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2068-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2068-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2068-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2068-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2068-203-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads