cycbot | 1d794426f4cfab8eb3f0a732c0a6804acf64f03b00e442d80e47ea5725a18549

General

Target

e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
Size

175KB
MD5

e5f25c2398764d8aa62c568a74e54413
SHA1

73aa4998e67930ea5bcc54b047b2b68de28f8ecf
SHA256

1d794426f4cfab8eb3f0a732c0a6804acf64f03b00e442d80e47ea5725a18549
SHA512

4d21c5a3cffa684a4021d8a9038de8fb227e9ec45a4fb50113fe1338b26ed987f0da57551ae93e96e0927bc64f58d6f8988382a6df768a7857fb90fbfc865d67
SSDEEP

3072:J7otOM1Lmo9ZK9Xu7QNbOw6ucekmLet2Qe697vxzB5umMcpIOmiqtq:s/ZKxu7Q99smat2gvxB5LpIOmis

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/2664-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2668-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2668-92-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1344-94-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2668-192-0x0000000000400000-0x000000000044B000-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"	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2664-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2664-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2668-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2668-92-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1344-94-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2668-192-0x0000000000400000-0x000000000044B000-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	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2664	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2664	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2664	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2664	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1344	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	32
PID 2668 wrote to memory of 1344	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	32
PID 2668 wrote to memory of 1344	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	32
PID 2668 wrote to memory of 1344	2668	e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e5f25c2398764d8aa62c568a74e54413_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1344

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\7DD0.F79

Filesize
1KB

MD5
c2a9864cb5ad70552ab0ee37e72fd3d0

SHA1
20e5fedb57920ecb6caebdab52c5b7b469fd8ee0

SHA256
84f72a3a7c5ac1732a492246e55516d62ede2d18251a3d44dbdf7d0d49d7e074

SHA512
57fdcd42c882ad0a132706b5e0de6b4cec2421637132eb2294ea274661ec4f0d576165ed29f4b701f65cea8eab99f30adc55e020192bb21e00297282c6e5d954

Download Submit
C:\Users\Admin\AppData\Roaming\7DD0.F79

Filesize
600B

MD5
d1c11645837420002da817cde8305cee

SHA1
d3b2652d6abb1e40cbb06377b419182f40bcca69

SHA256
ba532d67ef0833e41d223e94872e414c5299d7149065c54579aa284cdafea86d

SHA512
f764d3c832c7fe6a142510ac3b35ae49661e092ad7b0baec4fa36b6a35b886e2f871cbf276179f4a48ba9598a713e40f6c5582ab20bc6a8a5af36f1acfc3b423

Download Submit
C:\Users\Admin\AppData\Roaming\7DD0.F79

Filesize
996B

MD5
e8eb1b1bbeafe4518411d1761080a0af

SHA1
7ea78899e46f71a6c40db1230323869786e76cfa

SHA256
87dfb2de2410a8e8552f0acd3e9f2b2d96823ff33afec43e0aaef431f1cddae8

SHA512
1db822db468529a7413d34622cf8e0d64e2031ca05237a355a05878df165c1364f9889faffbf9031c5489b9d1dd2bd7f2d6b4d62e85b55611fdb9c6dc2f053fe

Download Submit
memory/1344-94-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2664-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2664-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2668-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2668-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2668-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2668-92-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2668-192-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads