Analysis
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max time kernel
78s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
23-03-2023 22:37
Static task
static1
Behavioral task
behavioral1
Sample
cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe
Resource
win10v2004-20230220-en
General
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Target
cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe
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Size
544KB
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MD5
74c58daee59afab7a32c09cccae41a61
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SHA1
fda222612fbdeb313f27d365f61395b5a703688b
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SHA256
cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b
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SHA512
e351d21a68b76e98cb1c1e27e1c7da748c6c985006c5ea25ec1cb9ea9b9a48a2c1b527b098912d966c7e3dffee70f363aad53e2d119a08e5f741d63326351a67
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SSDEEP
12288:0Mrwy90KmDJ/B7Ii21sQCy8FvRRbyqgULMLGwQth+XPlfM50xNG6SP:0yADlBc11PcvRRbWmMSneXPLGLP
Malware Config
Extracted
redline
down
193.233.20.31:4125
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auth_value
12c31a90c72f5efae8c053a0bd339381
Extracted
redline
real
193.233.20.31:4125
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auth_value
bb22a50228754849387d5f4d1611e71b
Signatures
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Processes:
pro1506.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" pro1506.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" pro1506.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" pro1506.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" pro1506.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection pro1506.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" pro1506.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 33 IoCs
Processes:
resource yara_rule behavioral1/memory/2500-157-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-158-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-160-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-162-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-164-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-166-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-168-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-170-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-172-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-174-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-176-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-178-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-180-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-182-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-184-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-186-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-188-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-190-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-192-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-194-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-196-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-198-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-200-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-202-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-204-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-206-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-208-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-210-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-212-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-214-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-216-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-220-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline behavioral1/memory/2500-218-0x00000000026A0000-0x00000000026DE000-memory.dmp family_redline -
Executes dropped EXE 4 IoCs
Processes:
unio5832.exepro1506.exequ2934.exesi561944.exepid process 4184 unio5832.exe 3228 pro1506.exe 2500 qu2934.exe 540 si561944.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Processes:
pro1506.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" pro1506.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 4 IoCs
Processes:
cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exeunio5832.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce unio5832.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" unio5832.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2240 2500 WerFault.exe qu2934.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
pro1506.exequ2934.exesi561944.exepid process 3228 pro1506.exe 3228 pro1506.exe 2500 qu2934.exe 2500 qu2934.exe 540 si561944.exe 540 si561944.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
pro1506.exequ2934.exesi561944.exedescription pid process Token: SeDebugPrivilege 3228 pro1506.exe Token: SeDebugPrivilege 2500 qu2934.exe Token: SeDebugPrivilege 540 si561944.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exeunio5832.exedescription pid process target process PID 376 wrote to memory of 4184 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe unio5832.exe PID 376 wrote to memory of 4184 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe unio5832.exe PID 376 wrote to memory of 4184 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe unio5832.exe PID 4184 wrote to memory of 3228 4184 unio5832.exe pro1506.exe PID 4184 wrote to memory of 3228 4184 unio5832.exe pro1506.exe PID 4184 wrote to memory of 2500 4184 unio5832.exe qu2934.exe PID 4184 wrote to memory of 2500 4184 unio5832.exe qu2934.exe PID 4184 wrote to memory of 2500 4184 unio5832.exe qu2934.exe PID 376 wrote to memory of 540 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe si561944.exe PID 376 wrote to memory of 540 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe si561944.exe PID 376 wrote to memory of 540 376 cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe si561944.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe"C:\Users\Admin\AppData\Local\Temp\cf55420cb4b2035ba5903c9f25377c732ad17a6c19dcf7384baa4f108fd15e3b.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:376 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\unio5832.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\unio5832.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\pro1506.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\pro1506.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3228
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\qu2934.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\qu2934.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2500 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 13524⤵
- Program crash
PID:2240
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\si561944.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\si561944.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2500 -ip 25001⤵PID:5012
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
175KB
MD541707338e1e2d868aa699ac0dd2e77b0
SHA136e0dfba09f9fb409faf0f9a99217d0d0c524b82
SHA2568d2a5ba6ae16aa5ee13382edb585c480b6bf2db098427ffe5f8d55323ded7557
SHA51280c66cbf19f6b2cc2e979b1fd1769cf45957761fa3f94b33fc194f88379b57ec9327a86ce374c6dc25334b44e4e8aa518a5d0d03ddb4f4eddfdfe8ddfc9fb6f2
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Filesize
175KB
MD541707338e1e2d868aa699ac0dd2e77b0
SHA136e0dfba09f9fb409faf0f9a99217d0d0c524b82
SHA2568d2a5ba6ae16aa5ee13382edb585c480b6bf2db098427ffe5f8d55323ded7557
SHA51280c66cbf19f6b2cc2e979b1fd1769cf45957761fa3f94b33fc194f88379b57ec9327a86ce374c6dc25334b44e4e8aa518a5d0d03ddb4f4eddfdfe8ddfc9fb6f2
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Filesize
402KB
MD504b6b35b58d3166f33ab73bfc91bf226
SHA19483b4fb5475c8b43fa8957acf53f1ad25d2e295
SHA2566b53c6837681275be0c3b20dd6c43d75bf92520233357ff78536fd57236bc7ae
SHA512314952856f67ef65b3963c8d32fbe7b8da3ba9a982d202cbbf9057bd4f70e4fa5893685517becf98258ab75f4fa4dea886b0b881454176e77888f460aae6939b
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Filesize
402KB
MD504b6b35b58d3166f33ab73bfc91bf226
SHA19483b4fb5475c8b43fa8957acf53f1ad25d2e295
SHA2566b53c6837681275be0c3b20dd6c43d75bf92520233357ff78536fd57236bc7ae
SHA512314952856f67ef65b3963c8d32fbe7b8da3ba9a982d202cbbf9057bd4f70e4fa5893685517becf98258ab75f4fa4dea886b0b881454176e77888f460aae6939b
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
349KB
MD51980b89c9169b355cc8b117f22448f0f
SHA199c56e024035ed0f858e62d8fd727a67b8fa00f1
SHA256c7ede14362bb6bedd1af38fcc22869e3202ea28dcfa56fbf077b2eaba5b2bb5f
SHA51233cd36d5fa9c9fbc3d14399d1819116e21e0b204f948d266f2fc88418722b4f489ce03917014f990067827bcb3aaf79105e54f5a627b41aa94b2c6d893006a1f
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Filesize
349KB
MD51980b89c9169b355cc8b117f22448f0f
SHA199c56e024035ed0f858e62d8fd727a67b8fa00f1
SHA256c7ede14362bb6bedd1af38fcc22869e3202ea28dcfa56fbf077b2eaba5b2bb5f
SHA51233cd36d5fa9c9fbc3d14399d1819116e21e0b204f948d266f2fc88418722b4f489ce03917014f990067827bcb3aaf79105e54f5a627b41aa94b2c6d893006a1f