c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f

Analysis

max time kernel
120s
max time network
132s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 04:12

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General

Target

c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe
Size

22KB
MD5

67ccf7321c8f0c2faa67f9358ce83087
SHA1

ad03d97607de08b3d8b29a377904ad056d9250f6
SHA256

c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f
SHA512

a1fc1b4ed96225ec05f3175e46d8d1416492122792864f4716fd1097007b5e045c984b80ced3011daf139e37a9660f4e4d011788025746905bcd647c3f5b691f
SSDEEP

384:aGpN5/SfmVoonJWpSu+Ip7JLyaBOEj63eVi06MCLGuWf:fhZSoEpnp7JLyWWElhCSu2

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000400000-0x000000000040F000-memory.dmp	UPX
behavioral1/files/0x0008000000012249-11.dat	UPX

Executes dropped EXE 1 IoCs

pid	Process
2624	hhcbrnaff.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x0008000000012249-11.dat	upx

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe
2624	hhcbrnaff.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2624	2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe	28
PID 2036 wrote to memory of 2624	2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe	28
PID 2036 wrote to memory of 2624	2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe	28
PID 2036 wrote to memory of 2624	2036	c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe	28

C:\Users\Admin\AppData\Local\Temp\c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe
"C:\Users\Admin\AppData\Local\Temp\c83ef7dd37d4783df1835cc10be8e9019c97ff778b894f8b829768b0d441451f.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
  "C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2624

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe

Filesize
22KB

MD5
3396290e9fbf5f39deb8de715649f9f5

SHA1
2ac35317271eb9cdf686b17a7a0d72b4b0517d82

SHA256
b0de952fb2b7cdd0c6ab895f33fa24dfa2a9b80e98a7698626a78010a892d167

SHA512
9a99e3894b2bb49547cf10c155ae30e5c1e8d5aa143846cb1cb0afb6a75afcdb4ebdeedae0e10b835ab58dc96f629696f7aba05b264cf34ae6ae5b2847f0f30e

Download Submit
memory/2036-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2036-1-0x0000000000230000-0x0000000000237000-memory.dmp

Filesize
28KB

Download
memory/2036-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2036-4-0x0000000000230000-0x0000000000237000-memory.dmp

Filesize
28KB

Download
memory/2624-16-0x00000000003D0000-0x00000000003D7000-memory.dmp

Filesize
28KB

Download