cycbot | 6326507e993160708cf10b327b4effc6f41507731ed48cf88c55a5ea523a60c4

General

Target

JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe
Size

191KB
MD5

472cf80fffa4084c50c8211d5a1f4e12
SHA1

6d212e4e6faf922b1294c049222f37018037127c
SHA256

6326507e993160708cf10b327b4effc6f41507731ed48cf88c55a5ea523a60c4
SHA512

5a27950e9944da223de8ae8fd128910460cd0704a6e62830ba6295bbce5cbfdba8504343c7b9ea82c670f0b49164a6c60f9b657e70a007e0429d03d18e45f39d
SSDEEP

3072:eGWrA6ctAurG1u5pArS74oyqoVdRM5Km3D1CxqDinp6Pu6zzQtfeuGaTuyXUMJxp:crTkrGCa9fVQ5npf2APuastfeqTrUy/

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2600-14-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2940-15-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/308-90-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2940-168-0x0000000000400000-0x000000000044E000-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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2940-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2600-12-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2600-14-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2940-15-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/308-90-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2940-168-0x0000000000400000-0x000000000044E000-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_472cf80fffa4084c50c8211d5a1f4e12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2600	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	30
PID 2940 wrote to memory of 2600	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	30
PID 2940 wrote to memory of 2600	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	30
PID 2940 wrote to memory of 2600	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	30
PID 2940 wrote to memory of 308	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	32
PID 2940 wrote to memory of 308	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	32
PID 2940 wrote to memory of 308	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	32
PID 2940 wrote to memory of 308	2940	JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2600
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_472cf80fffa4084c50c8211d5a1f4e12.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\0331.A55

Filesize
1KB

MD5
385f3848954244aafed6d13bd3611abb

SHA1
b9aade52d2f5de5833296f20fd1109d9567f295f

SHA256
7700f3c10c52f87c1e9d32fb5b478dd60d5c990af543fad5448bc0154db3c13b

SHA512
bdf84f23cb988492494df26b1965e83c3c453c2a7bc662d1f824ca2a9d79fbc44d2a940ab82190ff78cdbe9dd04c06b788fde8dfa4713364ef2a9d7a38e240bf

Download Submit
C:\Users\Admin\AppData\Roaming\0331.A55

Filesize
600B

MD5
5ff8c4d93db1d3557b7b21ab660acdde

SHA1
01392594313c8ddf09d1a7aa3c3f7ab5f0d714f2

SHA256
ef9ebaae03a5e9ee5a4104354bdd9e9ab45efe38548932d4afc0d286e3f5bad7

SHA512
bfb926d9f583d53e679dd583fdd0984fc986dc4476febf3c0ec3794fc9bcd9501ce1bbf4a3d7fe74453feb2c35618d3b83416770e4364312b44b648f7a92bdce

Download Submit
C:\Users\Admin\AppData\Roaming\0331.A55

Filesize
996B

MD5
1ccab4c358fbfcd66a944af682950921

SHA1
e49bbc45eec9cf2d0149e63b9665e5a597150b21

SHA256
cff74a931191644da1d7e956c4ed75f35ebc5a2c59a08f1b7cbd898d46ee0fba

SHA512
84f3a616583ecbd7dc0c61ce004c155463fd95240aa52e111eb8bbea1740323d583b3f073ba3a4b28a3b22c62d20eabf7445e58ec02004378fb930329eee6777

Download Submit
memory/308-90-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2600-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2600-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2940-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2940-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2940-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2940-168-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing