Analysis
-
max time kernel
141s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
01-05-2024 04:35
Behavioral task
behavioral1
Sample
e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe
Resource
win7-20240221-en
General
-
Target
e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe
-
Size
14KB
-
MD5
221806399f715e4b84f7ccacaaccb38c
-
SHA1
46b1e50a99d136ffa48426c6120122bb176a654f
-
SHA256
e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b
-
SHA512
b8ea09eeeb95eee14c4e7cabd0b26b9a4b5283843d3141130df7b95bf63e83533c79a7e1b4911391fdd6fd01c864126ebfd9ccb01c499e729add13f7535deab0
-
SSDEEP
384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLPo:IO3EVdV0YXd4DuicNV3zo
Malware Config
Signatures
-
Detects Windows executables referencing non-Windows User-Agents 6 IoCs
resource yara_rule behavioral2/memory/1236-5-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/1236-7-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/1236-8-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/1236-11-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/1236-14-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/1236-18-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral2/memory/5108-0-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/files/0x000c000000023b48-3.dat UPX behavioral2/memory/1236-5-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1236-7-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1236-8-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1236-11-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1236-14-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1236-18-0x0000000000400000-0x0000000000414000-memory.dmp UPX -
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 4592 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe -
Executes dropped EXE 1 IoCs
pid Process 1236 kqchost.exe -
resource yara_rule behavioral2/memory/5108-0-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/files/0x000c000000023b48-3.dat upx behavioral2/memory/1236-5-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1236-7-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1236-8-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1236-11-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1236-14-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1236-18-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\kqchost.exe e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe File opened for modification C:\Windows\Debug\kqchost.exe e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe File opened for modification C:\Windows\Debug\kqchost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5108 wrote to memory of 4592 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 85 PID 5108 wrote to memory of 4592 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 85 PID 5108 wrote to memory of 4592 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 85 PID 5108 wrote to memory of 2860 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 91 PID 5108 wrote to memory of 2860 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 91 PID 5108 wrote to memory of 2860 5108 e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe 91 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4592 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe"C:\Users\Admin\AppData\Local\Temp\e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5108 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\kqchost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:4592
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E9F7D5~1.EXE > nul2⤵PID:2860
-
-
C:\Windows\Debug\kqchost.exeC:\Windows\Debug\kqchost.exe1⤵
- Executes dropped EXE
PID:1236
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
14KB
MD5dc65ea7a6ac7d4188f55ba2095e07dfb
SHA13a2a2b066c3dd4d373e94bb86c6eed8d1377943d
SHA25671434cfe9be291eb081f26663bf2b5b8d154ac5d0d365587412e91e4c5a108c0
SHA512f86cb8b1c911038606a36303d72ac59283eea8a2704857b0a42e63e9641527f1484dd23e67b653c3f8ba02513c83ab74eb7425a8e1ba540bc4554860150c8291