bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 14:48

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General

Target

bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
Size

536KB
MD5

6db9410a27445c7835572e93af5cb01b
SHA1

20d34908bcce1865c43084221db07fa2325eee77
SHA256

bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477
SHA512

8b2718948455d8916dd45ec685f80bf7a722db6a7e98a71a4e0e0f0d423ff9056a7624c55ffda2b7b1e97a714a08890eb9a4f66deddff0d6fba5173933af4da6
SSDEEP

12288:Shf0Bs9bDDq9huzJgIJzgXaEw9Stu/aB9a/Okx2LIa:SdQyDLzJTveuK0/Okx2LF

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2548-0-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-150-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-371-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-481-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-590-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-736-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-741-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx
behavioral1/memory/2548-755-0x0000000000E00000-0x0000000000F02000-memory.dmp	upx

Unexpected DNS network traffic destination 4 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\2b9f68	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
1264	Explorer.EXE
1264	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
Token: SeTcbPrivilege	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
Token: SeDebugPrivilege	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
Token: SeDebugPrivilege	1264	Explorer.EXE
Token: SeTcbPrivilege	1264	Explorer.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1264	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe	14
PID 2548 wrote to memory of 1264	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe	14
PID 2548 wrote to memory of 1264	2548	bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe	14

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1264
- C:\Users\Admin\AppData\Local\Temp\bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe
  "C:\Users\Admin\AppData\Local\Temp\bf52fd35f00be6d94601e0a1ba38a2f02d6e363a52f53c5013fac8f13c1fb477.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2548

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab4A6A.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
memory/1264-6-0x0000000003BE0000-0x0000000003C59000-memory.dmp

Filesize
484KB

Download
memory/1264-7-0x0000000003950000-0x0000000003953000-memory.dmp

Filesize
12KB

Download
memory/1264-4-0x0000000003950000-0x0000000003953000-memory.dmp

Filesize
12KB

Download
memory/1264-3-0x0000000003950000-0x0000000003953000-memory.dmp

Filesize
12KB

Download
memory/1264-268-0x0000000003BE0000-0x0000000003C59000-memory.dmp

Filesize
484KB

Download
memory/2548-0-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-150-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-371-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-481-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-590-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-736-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-741-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download
memory/2548-755-0x0000000000E00000-0x0000000000F02000-memory.dmp

Filesize
1.0MB

Download