cycbot | 1ab8f3a1a6c45bd71971830695341ca555f8ccfad53277ffdefa9154594f4c7d

General

Target

f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
Size

188KB
MD5

f91bf6abc3e3c1f1d7ccb851c04d3963
SHA1

a7f79dc8ec8f42b55fbb04984b5448947eebfde3
SHA256

1ab8f3a1a6c45bd71971830695341ca555f8ccfad53277ffdefa9154594f4c7d
SHA512

a7fa23caaa61817c8210db470cb34e5ba9e60c3e6a3ac58786f2b48d619d0c618d90349631280490602d684aa1b7130dde4834a3399c650b1da4d2ca91670770
SSDEEP

3072:4StQnGrRnDWYwA0bUumDZz+Guu4pHigKCu+j34F2bsri56FJCJ85xYlz:4StQGtDN0bMDZz+pu8bjoF4UCJ8X6

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/2780-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1152-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1152-67-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2324-70-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1152-177-0x0000000000400000-0x0000000000445000-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"	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1152-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2780-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2780-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1152-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1152-67-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2324-69-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2324-70-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1152-177-0x0000000000400000-0x0000000000445000-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	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2780	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2780	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2780	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2780	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2324	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2324	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2324	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2324	1152	f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f91bf6abc3e3c1f1d7ccb851c04d3963_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324

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\3BEC.95E

Filesize
1KB

MD5
c31765a946291a102e8880191c215e86

SHA1
d6656e6d2568ba2cf6bb4721f7671b22884a9320

SHA256
fc76c2692bab1c542b9e767e84e8bb29fd00e2c5555942669b3a698e9ee5bc4e

SHA512
6cb158c379a84d200629fbabf0608ddfe9b8cd169db1c19a66f0ecbe95e94af79bc2fa9ee6626eb956aba9b94d46a823435238d48632c9d2acffe3f6b5a7e74c

Download Submit
C:\Users\Admin\AppData\Roaming\3BEC.95E

Filesize
600B

MD5
e43aa669d2599253e92c9d3df24bab97

SHA1
31f13ca364ba40a1e88d02f5b000dcb709cf047e

SHA256
9f3e423b1651b0968c7dc3029709edef446b32c68be017d25f8c7f9a5adc406a

SHA512
ac48ed0ba69049fdfe56de30bbd825352b3edc6907b81e850b4abd8c94077469f2546fc2469772d59efe00098f38e53cab3b5358e81c953bed03c2e95293c395

Download Submit
C:\Users\Admin\AppData\Roaming\3BEC.95E

Filesize
996B

MD5
976a573ac2bb192f7f86218b99fbf90f

SHA1
6491f4414e3046fd609c9cec323b5e2e3732f44e

SHA256
12efa739b3d0529f903bd80f144f3939ea402f2e8e569a3964e731bdc255ff02

SHA512
215de9d2a9450c4ccaa04c9327213e4e5b1b27d73ef8d11b7f1bd69177237c0bc1c73dfbffaffc2cc7ea77ea4b550aabc29c2cc9cc85576e4665f351c8f58eaa

Download Submit
memory/1152-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1152-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1152-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1152-67-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1152-177-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-69-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-70-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2780-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2780-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads