strela | 1608f2ce2bbb935d1275061be853b1f978251d68de7054ca24e0d4f956a81d8c

Analysis

max time kernel
119s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2023, 02:40

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General

Target
7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca.js
Size 3.7MB
Sample230830-c5xp6shd24
SHA256 7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca
MD5 f3b0e72e66e1324a2ab94285f069501a
SHA1 d96cb05ee0d622d3cab1c163bddc5e1d8e5280d2
SHA512 9c2847a3f9bda12f75afbb4c46cbd8c00177f290722ffe83f819fea9802d6d896c719f0910ca1eb4192a09c786d3134f504e54a93df9bb77b9d82f899b9db197
SSDEEP 49152:KHEsW6XqiNJhdW2QwkV++sNUrw2CatUbUt:vcC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

strela stealer

Malware Config

Extracted

Family

strela

193.109.85.77

Signatures

Strela
An info stealer targeting mail credentials first seen in late 2022.
stealer strela

Loads dropped DLL 1 IoCs

pid	Process
1508	regsvr32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2128	1968	wscript.exe	81
PID 1968 wrote to memory of 2128	1968	wscript.exe	81
PID 2128 wrote to memory of 3352	2128	cmd.exe	89
PID 2128 wrote to memory of 3352	2128	cmd.exe	89
PID 2128 wrote to memory of 452	2128	cmd.exe	90
PID 2128 wrote to memory of 452	2128	cmd.exe	90
PID 2128 wrote to memory of 1508	2128	cmd.exe	91
PID 2128 wrote to memory of 1508	2128	cmd.exe	91

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca.js" "C:\Users\Admin\AppData\Local\Temp\\undressgreet.bat" && "C:\Users\Admin\AppData\Local\Temp\\undressgreet.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Windows\system32\findstr.exe
    findstr /V ruindoctor ""C:\Users\Admin\AppData\Local\Temp\\undressgreet.bat""
    3⤵
    PID:3352
- - C:\Windows\system32\certutil.exe
    certutil -f -decode carpenternotice reflectfrighten.dll
    3⤵
    PID:452
- - C:\Windows\system32\regsvr32.exe
    regsvr32 reflectfrighten.dll
    3⤵
    - Loads dropped DLL
    PID:1508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

carpenternotice

Path C:\Users\Admin\AppData\Local\Temp\carpenternotice
Size 3.6MB
SHA256 449102b6c23dbcd82a0814b0339a874a0364cff84cb4243509e923612fe6c5f6
MD5 7aadb9da416942764469b6c0c8e12922
SHA1 9858f24cb90eff1d571797d2ff63037399e53731
SHA512 c9ea821823489b2cea21302585c39fd848abb62381af5ac532fe9566afee81d8c516914ed2e67c7ec59d1a8a8dd6867d6970edeebb235ba512e422698ff2e96b
SSDEEP 24576:M8L3gmMLsPeuFo2zqiySQL0h8ukzpG9kiWdGOYYLICV8PyoHOdSkz5+ItuyUch+F:/HEsW6XqiNJhdW2QwkV++sNUrw2CaA
MD5 SHA1 SHA512 SSDEEP

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reflectfrighten.dll

Path C:\Users\Admin\AppData\Local\Temp\reflectfrighten.dll
Size 2.7MB
SHA256 1cce53f25e060a91c796fe15d2f400821a638d20b25ea4209448ecfb1ea273f3
MD5 d827a8436775f234c70014c84a5b172a
SHA1 783487578a110c001c1f4bac0f6738219851aaaa
SHA512 53715b7ea60134c624c3015cb0a480b0857fd14bf64a0984a09b84daf5e84ec80abd4f93d7081c95acd7594bafa903a17465c5741b71d65d7be574e5ee4afb2f
SSDEEP 24576:5PS/65Sj1dTH3EcdoYWWG4keOfof8bpQ+SjkV2p3pdKUTa0OnpkIOXg:hMjxdkRkkUTafObXg
MD5 SHA1 SHA512 SSDEEP

Submit Download

reflectfrighten.dll

Path C:\Users\Admin\AppData\Local\Temp\reflectfrighten.dll
Size 2.7MB
SHA256 1cce53f25e060a91c796fe15d2f400821a638d20b25ea4209448ecfb1ea273f3
MD5 d827a8436775f234c70014c84a5b172a
SHA1 783487578a110c001c1f4bac0f6738219851aaaa
SHA512 53715b7ea60134c624c3015cb0a480b0857fd14bf64a0984a09b84daf5e84ec80abd4f93d7081c95acd7594bafa903a17465c5741b71d65d7be574e5ee4afb2f
SSDEEP 24576:5PS/65Sj1dTH3EcdoYWWG4keOfof8bpQ+SjkV2p3pdKUTa0OnpkIOXg:hMjxdkRkkUTafObXg
MD5 SHA1 SHA512 SSDEEP

Submit Download

undressgreet.bat

Path C:\Users\Admin\AppData\Local\Temp\undressgreet.bat
Size 3.7MB
SHA256 7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca
MD5 f3b0e72e66e1324a2ab94285f069501a
SHA1 d96cb05ee0d622d3cab1c163bddc5e1d8e5280d2
SHA512 9c2847a3f9bda12f75afbb4c46cbd8c00177f290722ffe83f819fea9802d6d896c719f0910ca1eb4192a09c786d3134f504e54a93df9bb77b9d82f899b9db197
SSDEEP 49152:KHEsW6XqiNJhdW2QwkV++sNUrw2CatUbUt:vcC
MD5 SHA1 SHA512 SSDEEP

Submit Download

undressgreet.bat

Path C:\Users\Admin\AppData\Local\Temp\undressgreet.bat
Size 3.7MB
SHA256 7c796e8277fa41ad68ee1a5bed21591ddac49195de6285b628e9d6265ecde2ca
MD5 f3b0e72e66e1324a2ab94285f069501a
SHA1 d96cb05ee0d622d3cab1c163bddc5e1d8e5280d2
SHA512 9c2847a3f9bda12f75afbb4c46cbd8c00177f290722ffe83f819fea9802d6d896c719f0910ca1eb4192a09c786d3134f504e54a93df9bb77b9d82f899b9db197
SSDEEP 49152:KHEsW6XqiNJhdW2QwkV++sNUrw2CatUbUt:vcC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1508-6211-0x0000000002A70000-0x0000000002A91000-memory.dmp

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memory/1508-6212-0x000000006D7C0000-0x000000006DA7B000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads