sendsafe | 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 12:04

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General

Target
8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
Size 943KB
Sample240602-n83alscb4w
SHA256 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944
MD5 8e048607275f42adff61e4adfee9df0c
SHA1 e371fddeb36b88381a7670a5fd32f6a0567d9124
SHA512 0841226e5ed67a608047404b56f1ec97192bc446a06757b2bdc2c3bf9f7cfa3b9325bb9eb56cc81a30d289ce8624980ef752d1612a1ada53182575e404b1c00f
SSDEEP 24576:K4sjfOiXhamHfpQbcDCd6WklChjZbhpJnsgMxEjOf:4jfTYuocDC1hd3ZG5f
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

sendsafe unregistered botnet spam

Malware Config

Extracted

Family

sendsafe

Botnet

UNREGISTERED

91.220.131.43:50003
91.220.131.43:50004

Attributes

service_name
Enterprise Mailing Service

Signatures

SendSafe
SendSafe is a notorious spam tool which then turned into spam botnet.
spam botnet sendsafe

SendSafe payload 5 IoCs

botnet

resource	yara_rule
behavioral2/memory/368-63-0x0000000000400000-0x00000000005C9000-memory.dmp	sendsafe
behavioral2/memory/368-65-0x0000000000400000-0x00000000005C9000-memory.dmp	sendsafe
behavioral2/memory/368-67-0x0000000000400000-0x00000000005C9000-memory.dmp	sendsafe
behavioral2/memory/368-69-0x0000000000400000-0x00000000005C9000-memory.dmp	sendsafe
behavioral2/memory/368-70-0x0000000000400000-0x00000000005C9000-memory.dmp	sendsafe

Loads dropped DLL 3 IoCs

pid	Process
3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3820 set thread context of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
368	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
368	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90
PID 3820 wrote to memory of 368	3820	8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3820
- C:\Users\Admin\AppData\Local\Temp\8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8e048607275f42adff61e4adfee9df0c_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:368

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsm3E33.tmp\System.dll
Size 11KB
SHA256 44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
MD5 883eff06ac96966270731e4e22817e11
SHA1 523c87c98236cbc04430e87ec19b977595092ac8
SHA512 60333253342476911c84bbc1d9bf8a29f811207787fdd6107dce8d2b6e031669303f28133ffc811971ed7792087fe90fb1faabc0af4e91c298ba51e28109a390
SSDEEP 96:UPDYcJ+nx4vVp76JX7zBlkCg21Fxz4THxtrqw1at0JgwLEjo+OB3yUVCdl/wNj+l:UPtkuWJX7zB3kGwfy0nyUVsxCjOMb1u
MD5 SHA1 SHA512 SSDEEP

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SFhelper.dll

Path C:\Users\Admin\AppData\Roaming\SFhelper.dll
Size 54KB
SHA256 887634e1ad732a47bb0823144957b18e5376dac6dc228c4e69c8bf1dc99de34a
MD5 742b299f76eeffe057a63574c295ce75
SHA1 b7ab39b8c0958885b55ff6ca4bce31d077445596
SHA512 ad539f025dbd38fcb8dcc3ba8cb571a51fc7c94ef833ee1e4f980338e6f0ef9a3cada0cf8707b2cefaeee15ba35f35a75822f8c85e34052ce5ba44af3abbbef2
SSDEEP 1536:HXyKXRJLlX1RDFUaKXLXgWknZGUGCWg9HuARKgy:iKX9FUaKGWg9HuARK7
MD5 SHA1 SHA512 SSDEEP

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memory/368-63-0x0000000000400000-0x00000000005C9000-memory.dmp

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memory/368-65-0x0000000000400000-0x00000000005C9000-memory.dmp

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memory/368-67-0x0000000000400000-0x00000000005C9000-memory.dmp

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memory/368-69-0x0000000000400000-0x00000000005C9000-memory.dmp

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memory/368-70-0x0000000000400000-0x00000000005C9000-memory.dmp

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memory/3820-59-0x0000000002190000-0x00000000021A3000-memory.dmp

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memory/3820-64-0x0000000002190000-0x00000000021A3000-memory.dmp

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memory/3820-66-0x0000000002190000-0x00000000021A3000-memory.dmp

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