cycbot | 266cb4041236f6dd70a4709321690030ab63ff84aebe41ea8b4b6acd7503c18d

General

Target

f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Size

165KB
MD5

f85a69eb1e7069208389ab6da9c06865
SHA1

cbaa4a1d3cc96c034c42281bc671d90bf8533c41
SHA256

266cb4041236f6dd70a4709321690030ab63ff84aebe41ea8b4b6acd7503c18d
SHA512

1ca18d54de4cfce342eab678578de027ee5f8d0fb9a651f7ed777f8d3b9c54c21173b8bf5708ff76d65f2317062584ffb9d561c2d79aba6955a9da9ac783d318
SSDEEP

3072:L7veQjYvOs+/P0cdFVTWNdSdDcbu/Rr/pnAvWBb6Ud6:utvOd/PZVTWWdRjVAvWkUd

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/1560-10-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2656-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2656-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1412-85-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2656-189-0x0000000000400000-0x0000000000445000-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"	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2656-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1560-10-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1560-9-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1560-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2656-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2656-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1412-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1412-85-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2656-189-0x0000000000400000-0x0000000000445000-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	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 1560	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	30
PID 2656 wrote to memory of 1560	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	30
PID 2656 wrote to memory of 1560	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	30
PID 2656 wrote to memory of 1560	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	30
PID 2656 wrote to memory of 1412	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	33
PID 2656 wrote to memory of 1412	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	33
PID 2656 wrote to memory of 1412	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	33
PID 2656 wrote to memory of 1412	2656	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1412

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\F342.A92

Filesize
1KB

MD5
fe12f7d107c7b6494199982daf40b52a

SHA1
2388cdadb86d020489bffd4533fd5174808c5b33

SHA256
03db525d96be66839075952a7add6fda0e184c73c5dbd6337eb5b865fc5729e5

SHA512
c64238730e7d4f2f92d44a5dcdbe0765dc7803319ce7d7dd4152a0b261f0ed13fc749e8cdaf379b178c4f29ee12a4716ec16a3fd14c063eaa6cb3637459bdc9e

Download Submit
C:\Users\Admin\AppData\Roaming\F342.A92

Filesize
600B

MD5
d0853e86ac6f992e47242a47c90bc348

SHA1
e8a414e7fe0e4c8c5e9a222acb42c28ce407a516

SHA256
f461d56de57bb3ddd2774495ad06973f0dc08eb6170ebb9c75c30d17fab9435b

SHA512
95ae89ff3c3e70896efd485d1129aabb14374b6b6ead1effff96b8578634cb0e7e42691d46c5752ce40b09feabfd3c779ff59349ca346023f165d2e88c0dab4c

Download Submit
C:\Users\Admin\AppData\Roaming\F342.A92

Filesize
996B

MD5
95898060ac825c4138ec3bd6bbd2388a

SHA1
8d36146ebe25fd3e73b8ec1ad820e45fed8cf008

SHA256
8b8f6bcdc7240b3d4685c93d21d2e8035004af554f49530ef06d5437d4c3c14f

SHA512
59913562f3265604910c16058d3bf175e6fec5e255a86e08672068f825ddb61f07865473bd5fb9728f28a67035cdcffecd71a007c1aa414fd70a62c3851e6735

Download Submit
memory/1412-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1412-85-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1560-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1560-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1560-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2656-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2656-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2656-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2656-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2656-189-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads