cycbot | 2b4c2dcfb2dba4f26c2d65f3621e7d123b96815cf8fbf16ccc14a378cd746141

General

Target

JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe
Size

186KB
MD5

4fa395b4f7eabf255edcab9a2c4f35eb
SHA1

86201b60e53229d7276d79df2f9019b240fa443e
SHA256

2b4c2dcfb2dba4f26c2d65f3621e7d123b96815cf8fbf16ccc14a378cd746141
SHA512

526f00971685aacc5742731f68fac61bfd0c955b6658f02abb30aba0da3b008ee90381fc6ce4c259803abaac683e136f48822d22fd2cce0d18e99633eb112736
SSDEEP

3072:WNsG96bd+ahdOcdJubbVs1HcDMChU6m/yZpaqy4fzFBBH/KKrpEGSWZCDzYelsGH:WN1WdlhdOcdJsJs1HcDjcajySznVHSW0

Score

10^/10

cycbot backdoor discovery rat 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
behavioral2/memory/1552-13-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/1392-14-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/4888-80-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/1392-183-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1392-2-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1552-12-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1552-13-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1392-14-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/4888-80-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1392-183-0x0000000000400000-0x0000000000471000-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_4fa395b4f7eabf255edcab9a2c4f35eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 1552	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	83
PID 1392 wrote to memory of 1552	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	83
PID 1392 wrote to memory of 1552	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	83
PID 1392 wrote to memory of 4888	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	93
PID 1392 wrote to memory of 4888	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	93
PID 1392 wrote to memory of 4888	1392	JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1552
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fa395b4f7eabf255edcab9a2c4f35eb.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\E5E2.C70

Filesize
1KB

MD5
be7dd1c9f8524391bd63b7f1ed4d72fa

SHA1
f89f9a329a5e96f7eb96fcb553fff10722a5a91a

SHA256
4f521e1e627332a1efe8b8515038295648316e1f4f151147f5be1323a1dc416b

SHA512
624d96bc5fef532ca13ce5da9384fe07c46050e15bcddc9ecd93cbf88af7f638d2b6f325ae21661fcfbed6ee6cb333c03e5a1d47d8f9f554ab2f9179fb917a1d

Download Submit
C:\Users\Admin\AppData\Roaming\E5E2.C70

Filesize
1KB

MD5
8456d2958e1796f0d520f79e28b79aa9

SHA1
657cb137cb8e5d3d7d77c60cb4b124e3536e11f8

SHA256
dda42fbcbe0a0153cdea784d0d45a589e8ae6ed8aed3e969ca3fbc4d3b4131ad

SHA512
a1b3876ccb1f27fd4e3b3184a21e11a02923c3cdd13953cd8b1a7720da099ebf9f9c4b0d3e2dacc9a32f07bb46e68bdd4eec4a0d1b611173e705e433bdb53dbe

Download Submit
C:\Users\Admin\AppData\Roaming\E5E2.C70

Filesize
600B

MD5
4a95dcb4f64e728a6b523a41fde9c863

SHA1
39d8afca89729e393d521b67060248dd3e668a70

SHA256
4004ecc1cbe8028d79f9d7af3b680bc54b7ceb56a0ce49c452ba67efe45517c8

SHA512
78d38e249ecb59722932557e39fe2e17de668d3d5bb81e9bf41342feaea0390013015b5bb6a28acad7de07c8839aa2a0ad90fefc3ea370f827a5b587fcf10219

Download Submit
C:\Users\Admin\AppData\Roaming\E5E2.C70

Filesize
996B

MD5
4455780cbd515ed4883cfeb70fddc082

SHA1
bab06d72c16f3a74091c1bc1529edb20893020a5

SHA256
119b4cbd9108d37e84ec9a2a68c1970b846d7060e23e63baa81b3fda4746c61f

SHA512
8a488e2d1dbb0676bca2ba8688bb1a7a0787d7dd62faeb303d2c8edbd2fd9055df279288d2d81b7715d694eb6155aa06d5461e2c1641af5344acafe463fef923

Download Submit
memory/1392-1-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1392-2-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1392-14-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1392-183-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1552-12-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1552-13-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/4888-80-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download

Analysis

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