f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1

Analysis

max time kernel
116s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 13:47

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General

Target

f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe
Size

25.2MB
MD5

f6870be4afb8703b537955e5f7e85ef3
SHA1

f10c8ad29f9af87585f582ff9c99ea08b586f470
SHA256

f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1
SHA512

f9c96a4ff3bd2b27d3fd2affdc5a92cf14456f13dfdef823de186cc90f6e975650b66788096fa546e594acec3d66340ea659a693fbe8d5e2c0d780c8f4fa4857
SSDEEP

98304:fzicAgirs+wz5tqVFhjbA5t8v4Xr9rGjoQqu5LsCA57sM9G9woz:Li8aKzzqvhja8v0r9rGfwCA5Ip9wI

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
764	3ddown.com_PE.Explorer_setup.exe
1688	is-66ECR.tmp

Loads dropped DLL 6 IoCs

pid	Process
528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe
764	3ddown.com_PE.Explorer_setup.exe
764	3ddown.com_PE.Explorer_setup.exe
764	3ddown.com_PE.Explorer_setup.exe
1688	is-66ECR.tmp
1688	is-66ECR.tmp

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\3ddown.com_PE.Explorer = "C:\\Users\\Public\\Opilj\\Faat.exe /3ddown.com_PE.Explorer /{7CA4FB64-36A6-4462-A35B-86B4C1B7CD9F}"	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 528 wrote to memory of 1464	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	27
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 1464 wrote to memory of 568	1464	Net.exe	29
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 528 wrote to memory of 764	528	f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe	30
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31
PID 764 wrote to memory of 1688	764	3ddown.com_PE.Explorer_setup.exe	31

C:\Users\Admin\AppData\Local\Temp\f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe
"C:\Users\Admin\AppData\Local\Temp\f8f7a8a64c5f0df58ea7c8283b5388609140b788693107dd924edfed84c89ea1.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:528
- C:\Windows\SysWOW64\Net.exe
  Net Stop PcaSvc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 Stop PcaSvc
    3⤵
    PID:568
- C:\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe
  C:\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:764
- - C:\Users\Admin\AppData\Local\Temp\is-ITT2V.tmp\is-66ECR.tmp
    "C:\Users\Admin\AppData\Local\Temp\is-ITT2V.tmp\is-66ECR.tmp" /SL4 $90126 "C:\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe" 3309744 72192
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe

Filesize
3.4MB

MD5
a1ce79004847ae73d01d2bc4b74fae02

SHA1
6103ae43464c4ffe005b790d2fa52dddd8ceb67b

SHA256
253caa8fc7021202e65372972e447cab37a2f781d6c0b3f46d7943437e190fd6

SHA512
f22230fd33498bb7be3d529725e3ad6d09d35b15603f7b33450016a69de785dbde021909d5cf837a2d754146f8f4bb223294797ef1ba0ad21076769d371d1746

Download Submit
C:\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe

Filesize
3.4MB

MD5
a1ce79004847ae73d01d2bc4b74fae02

SHA1
6103ae43464c4ffe005b790d2fa52dddd8ceb67b

SHA256
253caa8fc7021202e65372972e447cab37a2f781d6c0b3f46d7943437e190fd6

SHA512
f22230fd33498bb7be3d529725e3ad6d09d35b15603f7b33450016a69de785dbde021909d5cf837a2d754146f8f4bb223294797ef1ba0ad21076769d371d1746

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ITT2V.tmp\is-66ECR.tmp

Filesize
657KB

MD5
3dafb498bb15d5260cb2c12b391a0d48

SHA1
c775ae9fdf18ab0ce38a8adffabe378f461e79a1

SHA256
c5d5f5f814c5bc4989d691442051e5e78cf1971eb9b773a7a26b438e58a73d7a

SHA512
a42f39a73bd4615490c6e33c017fa09f9992e3327d244b050b6634ad696d421170fd63ec5d5e66e92d112dc804eabd0bcd56494c9499d78fad8b46fe2ef32a31

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ITT2V.tmp\is-66ECR.tmp

Filesize
657KB

MD5
3dafb498bb15d5260cb2c12b391a0d48

SHA1
c775ae9fdf18ab0ce38a8adffabe378f461e79a1

SHA256
c5d5f5f814c5bc4989d691442051e5e78cf1971eb9b773a7a26b438e58a73d7a

SHA512
a42f39a73bd4615490c6e33c017fa09f9992e3327d244b050b6634ad696d421170fd63ec5d5e66e92d112dc804eabd0bcd56494c9499d78fad8b46fe2ef32a31

Download Submit
\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe

Filesize
3.4MB

MD5
a1ce79004847ae73d01d2bc4b74fae02

SHA1
6103ae43464c4ffe005b790d2fa52dddd8ceb67b

SHA256
253caa8fc7021202e65372972e447cab37a2f781d6c0b3f46d7943437e190fd6

SHA512
f22230fd33498bb7be3d529725e3ad6d09d35b15603f7b33450016a69de785dbde021909d5cf837a2d754146f8f4bb223294797ef1ba0ad21076769d371d1746

Download Submit
\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe

Filesize
3.4MB

MD5
a1ce79004847ae73d01d2bc4b74fae02

SHA1
6103ae43464c4ffe005b790d2fa52dddd8ceb67b

SHA256
253caa8fc7021202e65372972e447cab37a2f781d6c0b3f46d7943437e190fd6

SHA512
f22230fd33498bb7be3d529725e3ad6d09d35b15603f7b33450016a69de785dbde021909d5cf837a2d754146f8f4bb223294797ef1ba0ad21076769d371d1746

Download Submit
\Users\Admin\AppData\Local\Temp\g8A0C3\3ddown.com_PE.Explorer_setup.exe

Filesize
3.4MB

MD5
a1ce79004847ae73d01d2bc4b74fae02

SHA1
6103ae43464c4ffe005b790d2fa52dddd8ceb67b

SHA256
253caa8fc7021202e65372972e447cab37a2f781d6c0b3f46d7943437e190fd6

SHA512
f22230fd33498bb7be3d529725e3ad6d09d35b15603f7b33450016a69de785dbde021909d5cf837a2d754146f8f4bb223294797ef1ba0ad21076769d371d1746

Download Submit
\Users\Admin\AppData\Local\Temp\is-ITT2V.tmp\is-66ECR.tmp

Filesize
657KB

MD5
3dafb498bb15d5260cb2c12b391a0d48

SHA1
c775ae9fdf18ab0ce38a8adffabe378f461e79a1

SHA256
c5d5f5f814c5bc4989d691442051e5e78cf1971eb9b773a7a26b438e58a73d7a

SHA512
a42f39a73bd4615490c6e33c017fa09f9992e3327d244b050b6634ad696d421170fd63ec5d5e66e92d112dc804eabd0bcd56494c9499d78fad8b46fe2ef32a31

Download Submit
\Users\Admin\AppData\Local\Temp\is-V6P9J.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-V6P9J.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/528-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/764-68-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/764-66-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download