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Analysis
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max time kernel
140s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/12/2023, 03:42
Behavioral task
behavioral1
Sample
101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe
Resource
win10v2004-20231215-en
General
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Target
101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe
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Size
1.5MB
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MD5
507c5920642e0ecb41d60a8cd835d2a5
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SHA1
c27aac57d049be8a67b88caaf2c61c615c22c012
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SHA256
101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96
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SHA512
f4858b436d58ab41ff87a0d7ab10cfff00ee4823af289ee44db51e230ec9788cedf9afa1f88124d5eea9ccb146a9c322e27a34c6a474900660b71a39c21c2e2c
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SSDEEP
49152:fElteIWkfBjbQkX3nzraEXuWUe5iLTIVY7acvAM:cAkfpQkHnzr7XuVe5iHsY7bY
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1984 Bugreport-262568.dll -
Loads dropped DLL 3 IoCs
pid Process 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe -
resource yara_rule behavioral1/memory/2560-0-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-12-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-10-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-15-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-33-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-35-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-31-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-29-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-37-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-27-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-40-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-50-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-52-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-54-0x0000000002A10000-0x0000000002A82000-memory.dmp upx behavioral1/memory/2560-51-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-48-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-46-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-44-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-42-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-25-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-23-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-21-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-19-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-17-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-8-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-7-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-6-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-5-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-57-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-58-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-59-0x0000000010000000-0x000000001003F000-memory.dmp upx behavioral1/memory/2560-68-0x0000000002A10000-0x0000000002A82000-memory.dmp upx behavioral1/memory/2560-101-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-106-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-115-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-124-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-137-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-141-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-142-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-143-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-144-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-145-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-146-0x0000000000400000-0x000000000082B000-memory.dmp upx behavioral1/memory/2560-147-0x0000000000400000-0x000000000082B000-memory.dmp upx -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Main 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 1984 Bugreport-262568.dll -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2560 wrote to memory of 1984 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 30 PID 2560 wrote to memory of 1984 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 30 PID 2560 wrote to memory of 1984 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 30 PID 2560 wrote to memory of 1984 2560 101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe"C:\Users\Admin\AppData\Local\Temp\101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe"1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2560 -
C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dllC:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll Bugreport %E9%AA%8C%E8%AF%81%E6%B6%88%202⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
13KB
MD586edd35c3148f725d3faad744c205dde
SHA145e2fc087d879a65dc9c1b8c44d9fe46445d6463
SHA2560fec20d19d47059a52f3c31f94f6472565654ef6b7363c9d23ff7878cf497e65
SHA5122c57a7790e698602094e53d925db2a44f9602eaac74dcfc43acd9af6788ce93df44b3708f5d09032a77a87770987fa819263b74fb7e5a07f387a646260182775
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Filesize
11KB
MD584286da1e31189a9e0b21c2ede9243da
SHA18d91a86d316c139d4c3994157d5e4a31aa755e40
SHA2562d23e5297f028e8bc52608a28496454b8c7a5f7f00b507a6964d31f0306d7a27
SHA51232edecf2c58b9f1fbe10b2f9832d062bc6fb735aedef029a9ea0dd5516674f72b0706b706883e550e8614cbc752420e71c3b79c4ed377a12440e01889caf600f
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Filesize
6KB
MD5029cf0e6f1d53a48316476a5c6c41413
SHA1f21722f51287e5e0d2fbe6a065bc8d605347106b
SHA2561bd81ca593367cea1e26a48ed89b58d20e7a3445c0d7213c433b152f45fc0460
SHA512090e9819fea6980111b7525842bc5e0d40e2a9807dadac8ba63cf87c752083ed813dda25cc123470bceb998150bea6965f1cc11d21e84a0277f4a920f16b7832
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Filesize
35KB
MD54d62a5ebd72769e6c49eedcaae7472d3
SHA16e557aeff1c42694eda5444e8ed90846550e603c
SHA2561d651d2f4ab45deea02eb588e85161a100df7d40d73c3de418b3fd6f92f1e6bb
SHA5124fb75bbe0ef0ec78ca64f55473a6f0dde0df18fbf08679ac15b40fc55c4c4da57db5ea5f65ddfe72ef03191373dbd0101cc6d67a7a7079711653335e43f988b9
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Filesize
408KB
MD526c6c8df577f841cd168eddbf582700a
SHA17634ffb25589ab0928601c557ab7ba2f66184f9e
SHA25695732627b27456bb41ce9c13d0911cfcb63d531a475fd40cef82271e490e49f7
SHA51243dfebbee7edb45aded6957d8cadbe6c14f616dff45007f22e0a745870c42dfe5e2c2ba5273f41fab18cf914baa9e689616f3b9cc60c1c45c9898ad464f3617a