cycbot | 322d841455b742ccf34a513e9026a9388d6b9a6253e8c93f20a74401e6143b87

General

Target

JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe
Size

167KB
MD5

77bc66c8866219b0866640c4e6f90aaf
SHA1

d1d894d3f849f82daec0626b8ff4658b09ef557f
SHA256

322d841455b742ccf34a513e9026a9388d6b9a6253e8c93f20a74401e6143b87
SHA512

a98a6cf3ebdf93466cc9cb84de6242ca51ce5403a2a74d737500edb81eeb5ec67d712f297f2be048855bcdf3a9ea4a7d0419602102ffd8c3d4f1da37003e9226
SSDEEP

3072:3//Sxak3diPM3JwOy8fCoG3o9ZCZBhWBJPqv2cJdTs6G0Bm7mK6WyWNH:3/a2k3KK6v6wUJqecvY9yKxZH

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/2628-19-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/784-20-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/784-80-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2168-82-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/784-190-0x0000000000400000-0x0000000000446000-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_77bc66c8866219b0866640c4e6f90aaf.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/784-2-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2628-13-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2628-19-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/784-20-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2628-21-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/784-80-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2168-82-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/784-190-0x0000000000400000-0x0000000000446000-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_77bc66c8866219b0866640c4e6f90aaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 2628	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	31
PID 784 wrote to memory of 2628	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	31
PID 784 wrote to memory of 2628	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	31
PID 784 wrote to memory of 2628	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	31
PID 784 wrote to memory of 2168	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	33
PID 784 wrote to memory of 2168	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	33
PID 784 wrote to memory of 2168	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	33
PID 784 wrote to memory of 2168	784	JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:784
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77bc66c8866219b0866640c4e6f90aaf.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168

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\FBD8.087

Filesize
1KB

MD5
ce65098fb7b513abffd34ac8056989bf

SHA1
25b6c7009de335c5e946554e0e92f317dfd865d3

SHA256
a6923dac573dd1ad86466f4e983624661c50bce4b2b659873219e16a3a778b8e

SHA512
8459d8eb7f8f9f76c270a6627e6fe3e46582f73b2308b8914657de7ecc3c5af5c6508f46aa50570976ad58ec12c4e14da17b09fa87212a07ded906d50d26276f

Download Submit
C:\Users\Admin\AppData\Roaming\FBD8.087

Filesize
897B

MD5
1b010c673624e267807df7a73ce04279

SHA1
c0b124f8507b2aa2c6c502b61ca18b737e18d2d6

SHA256
f138af9144623522b3383e930a930b63a61d4724ae97b8347340fdc168d35b69

SHA512
677f658aac4d54a8276dccdbee181120d587d580e92742633345a9464e53ede7a27a29db495f2e384ec50ebc118a0cabd8ae29a94445914b6c498fcbbc4262e7

Download Submit
C:\Users\Admin\AppData\Roaming\FBD8.087

Filesize
597B

MD5
dba5d76ef88e6897aeb962ebb73e36e0

SHA1
43f14ba73ee8acbd6050ed4c898b48e421eb362c

SHA256
037127ea40401cbaca8e8622a7c3426812c7827c1fb910ee2191d1f905c8abfd

SHA512
52816392f2f7ead57a8ddf5d851ff89c2f8929e1b56a445d2d1b0f24493b982c16f0140169af1ec1c864e0f5dbfbbc38d0e80f3e50508c692f1bb1aa64c959cc

Download Submit
C:\Users\Admin\AppData\Roaming\FBD8.087

Filesize
1KB

MD5
6a56ff8ab8ad3c39334be7d4b8dee830

SHA1
1bb1e996afb5dd59531546ca99fc09e004a19aa8

SHA256
1d0f6defbf23a9b0c99561e1d03331ff95b9ab0766650c6f9ed4c6a564bbdc06

SHA512
29369368fd6b53735d7219d3ed1003f10c856bc30db599aeabec3d9bfefadcfe49d86276f43d52927ed16c4af061f5554e8dd995dec91c75c3ffcfa08ad21eb0

Download Submit
memory/784-2-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/784-1-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/784-190-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/784-20-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/784-80-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2168-82-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2628-13-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2628-21-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2628-19-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads